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gear ratio change

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Old Sep 11, 2005 | 10:19 PM
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From: eldo springs mo
gear ratio change

hey guys I found a 04 truck just like I want but it has 410 gears in it what is involved in changing them to 373 it is 04 auto if I buy the truck I would level it and put on bigger wheels and tires so I dont know how much I would gain there but this thing at 80 was doin almost 2500 rpm but it sure would scoot for a stock truck so what would you guys recamend
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Old Sep 11, 2005 | 10:44 PM
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I dont think it is worth it, especially with it being an auto, my 05 with 3.73 and factory tires is turnin 2500 at 80, if you are going to put 315s or 35s on it I'd leave it alone, Never priced a set of gears and install kits for a dodge but I would guess it would be somewere in the neighborhood of $600. So I think the bottom line is youre going to have a truck with less "grunt", how much fuel could you buy with that $600 and how long would you have to drive it to make your money back, and would it be worth looseing that snappy low end it has now to maybe MAYBE save a couple bucks. This is only my oppinion though I am interested to see what everyone else has to say.
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Old Sep 11, 2005 | 11:02 PM
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From: Co Springs
If you buy the truck we can meet and trade axels

I have the 373's with the auto and 315's - towing in overdrive isn't what it used to be, but I like it a lot better than the puny stock tires.
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Old Sep 12, 2005 | 06:49 AM
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You'll need the 4.10 if your going to big tire it. If its 4x4 you got to change out 2 sets. I think $1500.oo will be closer.
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Old Sep 12, 2005 | 07:30 AM
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If you like the truck - buy it. I wouldn't sweat about the gear ratio. Any perceived improvement in fuel mileage from a taller gear set will never pay off the cost to do the gear change.

Another piece of good news is that the auto tranny's have a taller OD ratio over the NV5600 that is in your favor.
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Old Sep 12, 2005 | 12:03 PM
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The 4.10 axle ratio is the best to have if larger wheels & tires are in your immediate future.....be glad it has the 4.10, as alot of dealers seem to hardly ever have any 4.10 equipped trucks on their lots.
Greg
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Old Sep 12, 2005 | 08:37 PM
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I just had a gear swap priced from 3 different dealers. The original dealer who sold me the truck and obviously wanted some of the money back I conned him out of on the deal and 2 other uninvolved dealers. The original dealer wanted $2800 PER AXLE to swap gears t0 4:10! Other 2 were pretty close at around $2600 for the pair of axles. I had a local tranny shop price me and he quoted about $1800-$2000 depending on cost of gear sets. Here is the crappy part. Even if the dealer installs the gears you void the original warranty because it was not originally installed. Only warranty you get is a 1 year from the installing dealer. I'll just leave the 3.73's in and let them replace transmissions at their cost.

On a side note, this is a great forum with lots of good info. Thanks!
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Old Sep 13, 2005 | 04:33 PM
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Talk to H8REDLIGHTS
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Old Sep 13, 2005 | 11:16 PM
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If you want a set of 3.73's from a 4x4, I have them from my truck, along with a set of 4.56 for the front (don't ask).
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Old Sep 14, 2005 | 02:39 PM
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From: Central Texas
Originally Posted by dsl21
hey guys I found a 04 truck just like I want but it has 410 gears in it what is involved in changing them to 373 it is 04 auto if I buy the truck I would level it and put on bigger wheels and tires so I dont know how much I would gain there but this thing at 80 was doin almost 2500 rpm but it sure would scoot for a stock truck so what would you guys recamend
I agree with the others. If you're planning to put larger tires on the truck then you'd be better off keeping the 4.10's.
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Old Sep 14, 2005 | 07:57 PM
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From: eldo springs mo
what size tires can I put on with a leveling kit and 10 in rims I like to do at least 70 mph at 2000 rpm so what tire size would I need also can the dealer change the speedo for the bigger tires
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Old Sep 14, 2005 | 08:43 PM
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From: Co Springs
My 315s with the 3.73 gears and the automatic are in that range. If you don't tow heavy they'd be great. They just put my RPMs a little low for towing and I have to run it in drive more often than I'd like.

I was serious about swapping. I won't spend the $ to do a gear change, but swapping the axles wouldn't be bad.
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Old Sep 14, 2005 | 08:59 PM
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From: pacific north wet
35's w/410=1911rpm @70

any one intrested in gear swaps let me know i can hook ya up f/r complete w/ bearings etc for about $950!
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Old Sep 14, 2005 | 10:54 PM
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From: eldo springs mo
will 35s fit on a 10 in rim withe a 2 in lift in the front whats invovled in swapping ratios do you chang axels or just gears
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Old Sep 14, 2005 | 11:13 PM
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I'll let my set of 3.73's f/r go for 500 + shipping.
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