ive heard that in first and reverse that if you let the clutch out that the truck will no stall.

 

My new '05 is way better shifting than the '03 NV5600 was; worlds apart as far as I can tell. I like the new Gelag 6-spd so far, but only had it for 5 days. Time will tell.

 

You guys are confused about the zero throttle launch. It has nothing to do with the trans. The software in the ECM is set up such that the idle speed will be maintained regardless of load (to a point of course). You can stall it (just put it in 6th and dump the clutch), but it is very difficult to stall especially in first gear. I can pull my 10,000lb boat trailer combe out of the water on the steepest launches without ever putting my foot on the acclerator pedal.

with Ford and Chevy, they stall the engine on purpose when the idle speed drops below a certain point because the "dual mass" will resonate at its natural frequency somewhere around 450rpm. You can imagine what happens.

Never heard zero throttle launch called "take off assist" Sounds like something to do with a hybrid vehicle using the electric motor in addition to the combustion engine to help with launch

 

By the way.

How do you validate that the G56 shifts way better than the NV5600?

I completely disagree. I think the G56 shifts just like the NV4500, clutch engagement is smooth but the shifting movements are notchy and clunky, not smooth like the NV5600.

The whole reason I bought an 05 was to get the nv5600 trans.

 

I said "as far as I can tell", which is personal evaluation between the two ('03 I just traded ahd NV5600, and this '05 has the G56). So, I am speaking from my personal observation/experience, not from any scientific measurement or quantification.

 

If it is identical to the G56 sold over here, you should get a long servicelife out of it.
Over here it is installed in the Atego line, which is a 16,500 # GVW.
If you had onboard air, you could probably even make it a six speed autoshifter

The DMF I know nothing about.

 

it is suppose to be the same as the med duty ones MB has in their trucks over there... so it might be identical???

 

Looks the same from pics I've seen, dont know internally.
Wouldnt make any financial sense though to start a different setup inside,
all the talk here about the beancounters @ DC trying to make the most
out of their own lineup seems very likely to me.
The medium duties over here see a lot of shifting action in downtown delivery applications, and carry their GWV all day long.

 

I wonder how the G56 would hold up if converted to a conventional flywheel and clutch...

With DC cutting corners for cost (like no passenger side key hole, no rear fender liners) I can't imagine they would have went with the dual mass flywheel unless they felt they had to.

 

i see the fender liners as cost cutting, but the pass side keyhole i don't see as a cost cutting event... if you don't have a pass side key hole, you have keyless entry... i have only used my keyhole once and that was to check that the plain flat key i had cut worked. that's it... DC calls the missing keyhole a theft deterrent and i understand that... harder to break into the pass side now so they would have to go to the drivers side and be more visiable doing it

 

You made me walk outside and look, never noticed that there is no keyhole.

 

Getrag (pronounced guh-TRAG) is a leading manufacturer of automobile manual transmissions. The company was founded in 1935 in Ludwigsburg, Germany. Today, the company is allied with Dana Corporation and the European Ford Motor Company but supplies transmissions to most auto manufacturers including General Motors, DaimlerChrysler, and Toyota. Chief competitors include Aisin and ZF

This was found via google so take it for what it is worth and is a direct quote from the site.

 

The G56 is NOT a Getrag! it IS made by Mercedes Benz for their medium duty trucks.

 

My mistake, I mispelled it in my original post; also had heard it was a Getrag. I will ask the dealer's service manager next time I talk to him to see what the maker is. Thanks for pointing this out. I'll let you all know what he says the maker is.

 

Talked to the service manager this afternoon, and one of their techs just got back from a training class. He said the G56 IS a Getrag.