Gear codes

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Lit549

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Hate to resurrect a 6 mnth old thread but,my tahoe is in the shop for a rear end rebuild.It's a 2005 Ppv (ex trooper) tahoe,it has the gt4 g80 (3.73).What would be a good all around gear?I'm on the road alot and the 3.73 does Rev the engine a little more ,I rarely tow.How about the 3.42?Maybe 3.23??
 

swathdiver

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Hate to resurrect a 6 mnth old thread but,my tahoe is in the shop for a rear end rebuild.It's a 2005 Ppv (ex trooper) tahoe,it has the gt4 g80 (3.73).What would be a good all around gear?I'm on the road alot and the 3.73 does Rev the engine a little more ,I rarely tow.How about the 3.42?Maybe 3.23??

3.08 with the 4-speed will be pretty slow and doggy. If the 3.73 is a little high for your liking, try either of those two, the 3.23 being better for cruising on the highway of course.
 

Fedeleon1

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Hi, I have this, but no idea what gear I have
IMG_20200725_215842.jpg the truck is a tahoe k1500 diesel 1995
 

exp500

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Your diesel is rpm limited, with gas you get 6K rpm. Stay with 373's or drop 20 percent rpm to 308's but it will be really slow accelerating. I think you have around 170 HP.
 

danielfa

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Hello - I have a 1995 Tahoe LS 2D 4WD, with a OME gear ratio of 3.73, LT 265/75/16 tires, and I was thinking to change to 33" tires with either LT285/75 or LT255/85. I have 157,200 miles, and the truck runs great. I don't want to lose any power, so any thoughts about a gear ratio change with the larger tires would be appreciated! Thanks
 

bigdog9191999

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Hello - I have a 1995 Tahoe LS 2D 4WD, with a OME gear ratio of 3.73, LT 265/75/16 tires, and I was thinking to change to 33" tires with either LT285/75 or LT255/85. I have 157,200 miles, and the truck runs great. I don't want to lose any power, so any thoughts about a gear ratio change with the larger tires would be appreciated! Thanks

unless your towing near capacity often i wouldnt bother, the expence would be greater than the benefit in most cases. unless your looking for better gears for more power (also lower milage) then i would just leave it.

one tire size like that really dont have too huge an effect. i have done that exact size swap on a couple trucks and only when pulling a trailer at or a little over capacity with my 5.3 for 150 miles did i notice the difference, and being i have made that exact trip with other loads it wasnt that noticeable.

you may however find greater issue getting them to fit without trimming on that bodystyle.
 
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