Why do you-all think that the 6.7 is detuned 50 ft-lbs with the manual trans? Do you think it is related to clutch holding capacity or G56 strength?
Thanx.

The clutches now will hold but the new 6 spd auto must be tougher than the 6 spd. manual. Craig

The Duramax is detuned with the manual also.Torque is he## on a trans.

It is detuned 40ft lbs. There are plenty of stock G-56's running more than the stock 610 ft lbs. and they hold up.

I agree. In my opinion they do that to boost sells on the new auto. The new auto is a pricey option

I would imagine it would be the clutch that is the weak link on the man. trans.

Thanx for the info guys. It seems that I read that guys with the G56 trannys are do what ever they want with no tranny probs (besides clutch slipping). Makes ya' wonder why Dodge nixed the NVG5600 and went with the G56.
Thanx.

it's the clutch not the trans.:cool:
I would rather have 40ft lbs less and keep my standard. ( I have not been happy with my past truck's auto's[yuk] )

Makes ya' wonder why Dodge nixed the NVG5600 and went with the G56.
Thanx.


they did it to save money!! the G56 was already being made by MB so they could drop the NV contract and make everything in house so to speak.

I wish they would have kept the nv5600. I owned two of those trannys, and now own one g56. I still prefer the nv, the g56 isn't bad yet, but that thing just refuses to shift nice and smooth. It is a bear to get out of reverse

I wish they would have kept the nv5600. I owned two of those trannys, and now own one g56. I still prefer the nv, the g56 isn't bad yet, but that thing just refuses to shift nice and smooth. It is a bear to get out of reverse


mine shifts like butter:cool: even my wife thinks so.......























but she does have to use BOTH hands to get it in reverse!!![laugh]
and she still let me get a standard trans!

Are you talking about the Chassis Cab? You must be because it is the only one with the 6 speed auto. The whole package is detuned compared to the regular trucks.

Getrag makes one of, if not the best, manual in the auto industry. The G56 is superior in EVERY way to the NV5600 (I owned them both) and the reason that the auto is rated higher is exactly the reason that someone mentioned before. The auto option is so mucn more money (like the Duramaxes) that they need to offer some sort of performance justification for the price. I would never buy an auto on anything other than a semi (and even that is an Auto or Ultra-shift tranny) because of the need to double-clutch each shift (a nightmare for anyone who hasn't done it).

The G56 will definitely handle more power in stock form before giving up and is much easier to upgrade (just get a new clutch) than the auto.

But to answer your question; it's all marketing.

Its simple. They are worried about the G56.
Its nice that someone brought this up.

The lower power rating just shows that even Chrysler has no faith in their manual tranny either.

When the first HO came out it was limited to only the Manual NV5600.

Now its the other way around.[laugh] :o Its not all marketing.

Its simple. They are worried about the G56.
Its nice that someone brought this up.

The lower power rating just shows that even Chrysler has no faith in their manual tranny either.

When the first HO came out it was limited to only the Manual NV5600.

Now its the other way around.[laugh] :o Its not all marketing.

That doesn't really make any sense. Manual tranmissions are much more capable of handling high power than are autos. Autos have a lot more that can go wrong and are much more suceptable to breakage than are manuals. Also, it's no mistake that now all 4 truck manufacturers have higher ratings for their EXPENSIVE autos. They want people who want power to get the autos so they can make more money. Just simple economics. It's also one more thing that the driver cannot control. Same reason that so many exotics even (e.g., Lambo, Ferrari) are going to 95% "E-gear" or computer controlled manuals. That way the computer has the final say, not the driver and thus cannot do anything that the manufacturer did not intend.

Are you talking about the Chassis Cab? You must be because it is the only one with the 6 speed auto. The whole package is detuned compared to the regular trucks.

Incorrect. the chassis cab comes with an Aisin 6 speed auto, and the Heavy duty trucks will come with an Orion 68RFE 6sp automatic

Getrag makes one of, if not the best, manual in the auto industry. The G56 is superior in EVERY way to the NV5600 (I owned them both) and the reason that the auto is rated higher is exactly the reason that someone mentioned before. The auto option is so mucn more money (like the Duramaxes) that they need to offer some sort of performance justification for the price. I would never buy an auto on anything other than a semi (and even that is an Auto or Ultra-shift tranny) because of the need to double-clutch each shift (a nightmare for anyone who hasn't done it).

The G56 will definitely handle more power in stock form before giving up and is much easier to upgrade (just get a new clutch) than the auto.

But to answer your question; it's all marketing.



Are u saying that Getrag makes the G56???

Yes. That's what the "G" stands for. At least that was my understanding??:confused:

Yes. That's what the "G" stands for. At least that was my understanding??:confused:



Now I'm confused, I swear it is made by Mercedes Benz???????[eyecrazy]

NOT made by Getrag.........


http://www.dieseltruckresource.com/dev/showthread.php?t=93225

That doesn't really make any sense. Manual tranmissions are much more capable of handling high power than are autos. Autos have a lot more that can go wrong and are much more suceptable to breakage than are manuals. Also, it's no mistake that now all 4 truck manufacturers have higher ratings for their EXPENSIVE autos. They want people who want power to get the autos so they can make more money. Just simple economics. It's also one more thing that the driver cannot control. Same reason that so many exotics even (e.g., Lambo, Ferrari) are going to 95% "E-gear" or computer controlled manuals. That way the computer has the final say, not the driver and thus cannot do anything that the manufacturer did not intend.

I believe that either a manual or automatic can be designed and built to handle any amount of power, and they each come with a specific horsepower/torque "rating" assigned to them by the engineers that designed them. That is the reason for most of the Ram's previous transmissions being succeeded. As the power wars escalated, each transmission became unsuitable to handle the power of the latest engine, thus it was beefed up or replaced. For example, the NV4500 was not rated to handle the power of the HO engine in 2001, so it was replaced by the NV5600 for that application. We all know we can add 100 HP to our truck and our own NV4500 will probably live through it, but the rating assigned by the engineers rules. Warranty costs are probably part of the "rating" equation too.

Determination as to what a tranny will hold is not just how much power is run through it. A determining factor is also what it is used for. Basically Chrysler is saying that the G56 cant handle big torque with a big load behind it so they derate the engine (as a bandaid) to use their substandard tranny with it.

They used to do it all the time with the autos. Now the autos are made to hold a little more so you see the power rating being more with those.

When I bought my 99 2500 Auto is was rated at 215hp/420ft lbs and the same year model in manual was 235hp/460ft lbs. How was it marketing then? The auto's still sold a bunch more than the manuals so that argument does not hold water very well.

Ask DDryden about how he grenaded 2 G56's back to back sledpulling.
The only weakness that we have seen with the NV5600 is the shaft breaking while sledpulling but that happens with every other tranny without billet parts.

Could it be that the auto is rated higher, because thats how much it takes to turn compared to the standard, that way both options are putting the same amount of power to the ground?? Just a thought

tufamc might have a point there, it could be taking that much more power to match the power put down with the manuals. On the 01s the autos probably sold more because there where more people wanting autos. (I'm surprised there have been manuals for as long as there has) It could also be that the engineers are designing something for unexperienced people to drive power wise. Yet still be able to say ours makes XXX hp and YYY torque.

The auto is rated higher, because the Torque converter can slip.
With a manual you have no slip, so its easier to damage parts.
If you remember way back, in the 70's they did the same thing. Most big blocks and Hemi's were only avil with an auto.

Could it be that the auto is rated higher, because thats how much it takes to turn compared to the standard, that way both options are putting the same amount of power to the ground?? Just a thought



Good point tufamc, My standard fells like it puts down the power 100% better then my 01 auto.

Could it be that the auto is rated higher, because thats how much it takes to turn compared to the standard, that way both options are putting the same amount of power to the ground?? Just a thought

I believe that the horsepower and torque number listed for the egines are brake horsepower which is at the flywheel, I wonder what the rear wheel horsepower is for both vehicles setup up the same except for tranny.

L8r,..............dogger

I wish they would have kept the nv5600. I owned two of those trannys, and now own one g56. I still prefer the nv, the g56 isn't bad yet, but that thing just refuses to shift nice and smooth. It is a bear to get out of reverse

Is this NV5600 to G56 change the reason for the final gearing difference from 2005 to 2006?

Is this NV5600 to G56 change the reason for the final gearing difference from 2005 to 2006?

I don't know. Is the G56 also a .75 overdrive?

The auto is rated higher, because the Torque converter can slip.
With a manual you have no slip, so its easier to damage parts.
If you remember way back, in the 70's they did the same thing. Most big blocks and Hemi's were only avil with an auto.

If you slip a modern "lock up" T/C you have a problem, if you slip a clutch you have problems and it can slip.

All the Chrysler Big Blocks and Hemi's had 4 speeds available right up until the demise of the Hemi in '71 and the last big block in "I think" 1974.

I would rather have 40ft lbs less and keep my standard. ( I have not been happy with my past truck's auto's[yuk] )

Ditto, and ditto your other post after this one.[coffee]

The auto's still sold a bunch more than the manuals so that argument does not hold water very well.
That wasn't my experience, nor that of many others here. Why is it that so many people are dissatisfied with their 47 & 48 RE's (after a HP upgrade) tan the people with STOCK clutches on NV's, & G-56's??
I very much specifically bought a manual this time because of how disgusted I was with my old auto. I have a feeling I am also in the majority with this line of thinking too.

Just my opinion, I'm not sled pulling with it or anything......[whistle]

NOT made by Getrag.........


http://www.dieseltruckresource.com/dev/showthread.php?t=93225

Uhhhhh. MADE by Getrag:
http://dodgeram.info/2005/index.html

My guess is DC detune the engine for warranty reasons. It's a whole lot cheaper to detune the engine than to allocate extra dollars per vehicle for warranty repairs.

MikeyB

whoa! you guys are all over the place with this thread, torque rating is based on so much more than the component, it is a list of factors.
torque rating in autos is based on T/C torque multiplication, clutch holding ablities, and most important of all parking SPRAG holding!
G56 and NV5600 are rated as such due to the factory clutch limitations and NO PARKING SPRAG! so DC trusts you to put in 1st gear.
IMO, D.wigg had it right in that it is mostly market, you must flood he market with high priced opinions or they risk no consumer feed back. DC has a five year production contract with AISIN for the 68. time will tell how good the trans is.

Uhhhhh. MADE by Getrag:
http://dodgeram.info/2005/index.html


The only reason the G was originally in the designation was Getrag had the contract to build the transmission for MB. It has always been an MB designed transmission built to their specs. The transmission is no longer a G56 in the parts reference due to the confusion. The designation is now M56 as the production facilities are now in Brazil by a company co-owwned by MB.

The major reason for the derating of the manual is the DMF and lack of TQ management on the manual trucks. The autos are a full electronic trans that can be TQ managed. While the manual trans is capabe of more, the DMF is at its max for longevity so the only way to keep it there is derate the power.


Looks like the end is in sight for the gear jammers. [laugh]

The only reason the G was originally in the designation was Getrag had the contract to build the transmission for MB. It has always been an MB designed transmission built to their specs. The transmission is no longer a G56 in the parts reference due to the confusion. The designation is now M56 as the production facilities are now in Brazil by a company co-owwned by MB.

The major reason for the derating of the manual is the DMF and lack of TQ management on the manual trucks. The autos are a full electronic trans that can be TQ managed. While the manual trans is capabe of more, the DMF is at its max for longevity so the only way to keep it there is derate the power.


Looks like the end is in sight for the gear jammers. [laugh]



What is DMF?
Thanx.

Dual Mass Flywheel?

That can be taken care of too.

I doubt ANY thing (but catastrophic failure) will add up to the $4,000 PLUS that is required to properly build an auto.

Dual Mass Flywheel?

That can be taken care of too.

I doubt ANY thing (but catastrophic failure) will add up to the $4,000 PLUS that is required to properly build an auto.


When the DMF (Dual mass flywheel) goes under power it can and will take out the flywheel, clutch, bell housing/adapter, and the transmission. All that SHOULD be warranty, BUT, who wants to chance it with the current state of warranties? That was $6500 on a Chevy I know of, out of pocket, power upgrades present. :D


What does an SB conversion for the DMF cost? Add to that the power upgrade to get it even with the auto trucks and I would guess it will be pretty close to $4k.

I THINK the NV has a .73 overdive and the G56 has a .79

Reliability--------Longevity--------And SIMPLY the Fact IS, FORD and GM are pretty much only offering a Auto Tranny! WHY????? $$$$$$$$$$$-----Dodge would rather sell the new Auto than sell the Manual. Another reason------Out of Warranty Issues------Servicing--------All this adds up in the pocketbook of DCX. It's all a game of the $$! $$ Rules this world and the world of the Big 3! That's it, end of Discussion!

I have owned both the NV5600 and the G56! G56 Gets my vote for shifting better. Pulling better at lower speeds and Higher! Better RPM Range for Highway Towing with lower EGT's! ------------- AND For Gess sake, please stop bringing up the Sledpulling factor into these Manual conversations!! PLEASE-----That's all you preach! 99.5% of the Manual G56 Owners use there trucks for what they are supposed to be used for. Not High Stress Pulling of a RedNeck Infarction that is designed to STOP a MOVING OBJECT NO MATTER WHAT THAT OBJECT IS!!!!!!!!!!! [director] :o ------- [duhhh] Prayer "Forgive the NV5600 Owners for there Manual Tranny Sin's o'Lord??! They do not realize the shame they place upon this community with the breaking of such NON-Part's Avaliable Tranny's!----------AMEN!"

JB

.......Amen..........[coffee]

Bump for the prayer!!!! All must Read! [roll]

Uhhhhh. MADE by Getrag:
http://dodgeram.info/2005/index.html


That link is dead...


I have been looking on Getrags site and they make no mention of the G56 anywhere?







*EDIT*.......

















Amen!

Its obvious that the stress of sled-pulling on a tranny of anykind, brings out the weak spots the transmission, Kind of like a forcast of what will happen 100-200 thousand miles down they road, when in normal operation.
It should probably be part of DCs testing before production.[duhhh]

As for the lower rated 6-speed, its complete bs. I could see both sides of the arguement, it may be that they found the limit of the tranny already, or marketing, either way complete bs

I very much specifically bought a manual this time because of how disgusted I was with my old auto. I have a feeling I am also in the majority with this line of thinking too.

Just my opinion, I'm not sled pulling with it or anything......[whistle]



I agree 100%

Dual Mass Flywheel?

That can be taken care of too.

I doubt ANY thing (but catastrophic failure) will add up to the $4,000 PLUS that is required to properly build an auto.

Don't forget the $1000 extra you pay for the auto to begin with!!! And the regular oil and filter changes it requires.

Does my '06 have a DMF? I really hate those. I had to replace the one in my '91 Ford when the springs started flying out of it. What a dumb idea..

Don't forget the $1000 extra you pay for the auto to begin with!!! And the regular oil and filter changes it requires.

Does my '06 have a DMF? I really hate those. I had to replace the one in my '91 Ford when the springs started flying out of it. What a dumb idea..


yep, you have a DMF

Uhhhhh. MADE by Getrag:
http://dodgeram.info/2005/index.html

"Getrag HD 6-spped manual transmission"

Someone needs to contact the webmaster of this site and tell him to correct his bad info and run it through spell check.

I have owned both the NV5600 and the G56! G56 Gets my vote for shifting better. Pulling better at lower speeds and Higher! Better RPM Range for Highway Towing with lower EGT's! ------------- AND For Gess sake, please stop bringing up the Sledpulling factor into these Manual conversations!! PLEASE-----That's all you preach! 99.5% of the Manual G56 Owners use there trucks for what they are supposed to be used for. Not High Stress Pulling of a RedNeck Infarction that is designed to STOP a MOVING OBJECT NO MATTER WHAT THAT OBJECT IS!!!!!!!!!!! [director] :o ------- [duhhh] Prayer "Forgive the NV5600 Owners for there Manual Tranny Sin's o'Lord??! They do not realize the shame they place upon this community with the breaking of such NON-Part's Avaliable Tranny's!----------AMEN!"

JB

You're going to make me go out in the cold weather and give my NV5600 a hug. [laugh]

MikeyB

The G56 has a cast aluminum case. The entire case, not just the tail housing. In sled pulling it may be the reason for the demise and failure.

When I rebuilt my NV4500 trans this spring I installed an aftermarket iron tail housing to replace the factory cast aluminum tail housing. Anything to increase the stiffness of the thing should help on high powered trucks.

"Getrag HD 6-spped manual transmission"

Someone needs to contact the webmaster of this site and tell him to correct his bad info and run it through spell check.


Below are my feelings on that bit of news...........


[yuk] [verymad] [yuk] [verymad] [yuk] [verymad] [yuk] [verymad] [yuk] [verymad]

Please see page 2 of this LINK (http://www2.mercedes-benz.co.uk/content/media_library/unitedkingdom/mpc_unitedkingdom/trucks/products/New_Atego__CV507__October_2006.object-Single-MEDIA.tmp/CV%20507_Single%20pages.pdf). The G56 transmission is manufactured by MB (Mercedes Benz).

Rusty

Please see page 2 of this LINK (http://www2.mercedes-benz.co.uk/content/media_library/unitedkingdom/mpc_unitedkingdom/trucks/products/New_Atego__CV507__October_2006.object-Single-MEDIA.tmp/CV%20507_Single%20pages.pdf). The G56 transmission is manufactured by MB (Mercedes Benz).

Rusty


I googled it for over an hour last night and could not find ANY evidence that Getrag makes the G56.

When I googled it with Mercedes it brought up a ton of stuff about the G56.


I too would like to see some real good evidence of who makes it!???!!!

See the bottom right hand corner of page 9 HERE (http://72.14.203.104/search?q=cache:BKG_LirIFE8J:www.automotiveworld.co m/include/getfile.asp%3Fid%3D556%26contentid%3D862+Mercedes+ Benz+Brazil+G56&hl=en&gl=us&ct=clnk&cd=10).

Rusty

So it can be said from that article that the G-56 is closer related to Eaton than Getrag?

I too would like to see some real good evidence of who makes it!???!!!


Why don't you try reading the posts and the links then? [duhhh]

This has been beat to death [deadhors] for so long it has reached the status of "Ford owns Cummins". [laugh]


It's not a Getrag transmission, it's not an Eaton, it is and always has been a Mercedes Benz transmission built by whoever got the contract. It's not any closer to or farther from any other manual transmission. It is what it is, an MB medium duty 6 speed manual transmission. It has its good points and it has its bad points, but, for better or worse it is what you get for a manual transmission in a Cummins powered Dodge truck. :)

No way! Ford owns Cummins?

See the bottom right hand corner of page 9 HERE (http://72.14.203.104/search?q=cache:BKG_LirIFE8J:www.automotiveworld.co m/include/getfile.asp%3Fid%3D556%26contentid%3D862+Mercedes+ Benz+Brazil+G56&hl=en&gl=us&ct=clnk&cd=10).

Rusty

That's the best proof I have read. thanks for the link:cool:

Why don't you try reading the posts and the links then? [duhhh]

This has been beat to death [deadhors] for so long it has reached the status of "Ford owns Cummins". [laugh]


It's not a Getrag transmission, it's not an Eaton, it is and always has been a Mercedes Benz transmission built by whoever got the contract. It's not any closer to or farther from any other manual transmission. It is what it is, an MB medium duty 6 speed manual transmission. It has its good points and it has its bad points, but, for better or worse it is what you get for a manual transmission in a Cummins powered Dodge truck. :)



I read those link's, but showing me that the G56 is offered in a MB truck does not prove that MB made it.;) [dummy]

The link Rusty posted actually said who and where it is being made.

I bet the manual will put more torque on the ground, I saw an article were they dynoed a new Duramax/allison with more engine torque, against a 610lbs. torque Cummins with a manual, and the manual Cummins put more torque on the dyno, even though the Duramax had more torque at the crank.

it is all marketing. now that diesel are quieter and dont belch smoke, unless we make them :), more and more ppl are getting into them, and what tranny sells the most? well 70% of vehicles sold in north america are auto!!

Plus with the uneducated buyer, what is an upsell?? You can have the g56 with 610 ft-lbs, OR you can spens another $2200 dollars and get 650 ft-lbs!!!

mine shifts like butter:cool: even my wife thinks so.......

but she does have to use BOTH hands to get it in reverse!!![laugh]
and she still let me get a standard trans!

[laugh] Mine had to wedge her elbow against the console and use it for leverage until she got the hang of it.

Same reason that so many exotics even (e.g., Lambo, Ferrari) are going to 95% "E-gear" or computer controlled manuals. That way the computer has the final say, not the driver and thus cannot do anything that the manufacturer did not intend.
Agree with the first part but disagree with this part. It's not so the driver can't do what the manufacturer intended, it's just reality with what some of these manufacturers have learned from the track - computer controlled manual transmissions shift faster and more accurately which equates to better performance in the categories they're measured against. I read once (ages ago) that the fastest drivers can pull a shift in 1/10th of a second. Compare that to an automatic (or semi automatic) manual transmission which can perform the same shift in milliseconds and measure that over the course of a race, the difference is seconds at the end of the race because a driver shifts so many time per lap. Same reason that drag racers use airshifters/etc.

Agree with the first part but disagree with this part. It's not so the driver can't do what the manufacturer intended, it's just reality with what some of these manufacturers have learned from the track - computer controlled manual transmissions shift faster and more accurately which equates to better performance in the categories they're measured against. I read once (ages ago) that the fastest drivers can pull a shift in 1/10th of a second. Compare that to an automatic (or semi automatic) manual transmission which can perform the same shift in milliseconds and measure that over the course of a race, the difference is seconds at the end of the race because a driver shifts so many time per lap. Same reason that drag racers use airshifters/etc.

I totally agree with the fact that E-gear is much faster. That wasn't my point really at all. THe main reason Lambo and Ferrari have gone to them is so that you can't do what they (viz., the ECU) don't want you to. It takes a $50,000 non-refundable deposit to Lambo to get them to build you a 6-speed! It's retarded!!!!![dummy] [dummy] [nonono]

Plus with the uneducated buyer, what is an upsell?? You can have the g56 with 610 ft-lbs, OR you can spens another $2200 dollars and get 650 ft-lbs!!!

When I'm ready to purchase again I'll go the lower "rated" torque and horsepower with a manual and spend $600.00 for an e-box to get the additional torque and horsepower and pick my own gear thank you!

L8r,...........dogger

When I'm ready to purchase again I'll go the lower "rated" torque and horsepower with a manual and spend $600.00 for an e-box to get the additional torque and horsepower and pick my own gear thank you!

L8r,...........dogger

Well said!! [guitar] [guitar] [guitar] :cool:

Do I have a NV5600-6 speed or a g56? What is the real difference??

This thread is great!!!

Do I have a NV5600-6 speed or a g56? What is the real difference??

This thread is great!!!

NV5600!!!!!!!!!!!!!!!!!!!!!!!!!

OK I have a NV5600. Thanks. What is the difference and why do some say the g56 is better?

OK I have a NV5600. Thanks. What is the difference and why do some say the g56 is better?

It's just a nicer transmission. Smoother shifting; shorter throws; higher power handling capabilities = longer life.

I had an NV5600 in my '03 and there is no comparison. And the NV5600 was a huge improvement to my '02 NV4500!

I don't recall the NV5600 ever being offered in a Dodge with 650 ft-lbs of torque...wait a second wasn't the switch from 600 to 610 ft-lbs of torque right about the time of the switch over to the g56.

Does anyone have a 610 with an NV5600 or are they all g56? See, DC knew that the NV5600 couldn't handle the Cummins in its full 610 glory and had to detune it to 600. Only after installing the mighty g56 could they turn up the wick and give consumers all 610 lb-ft they deserved.[duhhh]

Seriously though, does anyone have the NV5600 and a 610?

I think we've made it to the point where DMFs would be exploding and g56s eating its plastic gears alive if they were as bad as some make them out to be. I wanted a new truck with a 6-speed...c'est la vie.

I really would like to know if anybody has an NV-610 combo.

Best regards.

Yes, the 610's was available with the NV5600. A reflash is all that's needed to change a 600 to a 610.
My NV5600 is holding up fine with the 700+ version. [coffee]

MikeyB

The only reason DCX got rid of the NV5600 is because of cost.
The deletion of the NV5600 and NV4500 resulted in American jobs lost. Specifically jobs in Muncie Indiana. New Venture Gear was a joint venture between DCX and GM. So you could say the NV series was a Chrysler tranny itself as is the G56.

If they could get rid of the Cummins and replace it with something as cost effective and with the same reputation they would have already.

I am just thankful they stuck with Cummins and actually went to a tougher axle supplier.

Yes, the 610's was available with the NV5600. A reflash is all that's needed to change a 600 to a 610.
My NV5600 is holding up fine with the 700+ version. [coffee]

MikeyB

I figured all that was needed to get the 610 was a re-printed window sticker that said "610" instead of "600."

You could get the NV with the 610 in the 05 year models, there was an option on dodge.com for an HD 6spd, I can't tell if the HD (I would assume gear ratio wise it was) was the G-56 or the NV. (The NV is a brute weight wise, so it might have been the HD)

manual trannies polute more according to the EPA so they are pushing for the elimination of manual trannies in rigs.

that said there is more service work that a dealership maybe able to provide to an auto than a manual.

Finally how else do you reduce demand for manual trannies to the point that 99% of your customers want the auto and 1% are still stubborn enough to still ask for a manual. and when it hits the 1% mark how do you convince the production manager to discontinue offering the manual tranny? Look at chevy as of 07 they no longer offer the 6spd witht he dmax or the 8.1. why because they never upd the hp so customers were left with a manual tranny and 510 ft/lbs or the auto with upto 600? hmm which blows the doors off the manual and makes the dealerships more money in service work?


little fast and scrambled but you ge thte point $$$$