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Old 01-27-2012, 06:34 AM
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Chevy Truck Rear-End Swap, Advice!

Okay i have a 91 chevy truck 2wd with the five lug wheels and 3.08 gears. I believe the rear is starting to go out and am pretty much a tight wad and don't want to spend the money to have the rear end rebuilt (never done it myself and don't know where to start!) I have access to a couple junk yards with TONS of these trucks so parts are plentiful. I am wanting to upgrade to a 3.73 gear. Does anybody know if chevy made a 5 lug rear end with 373 that is a bolt up for these trucks? Thanks for your input. I do know the codes to look for in the glove box for the rear-end ID. But don't know if chevy even made what i am looking for! thanks again.

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Old 01-27-2012, 08:48 AM
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My 03 had 3.73 gearing- but when I went to replace it the junk yard wanted
over 1000. for it as the plow trucks guys were always looking for them. The
3.40 gear rear was 400.
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Old 01-28-2012, 08:07 AM
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Quote:
Originally Posted by Guntar13
Okay i have a 91 chevy truck 2wd with the five lug wheels and 3.08 gears. I believe the rear is starting to go out and am pretty much a tight wad and don't want to spend the money to have the rear end rebuilt (never done it myself and don't know where to start!) I have access to a couple junk yards with TONS of these trucks so parts are plentiful. I am wanting to upgrade to a 3.73 gear. Does anybody know if chevy made a 5 lug rear end with 373 that is a bolt up for these trucks? Thanks for your input. I do know the codes to look for in the glove box for the rear-end ID. But don't know if chevy even made what i am looking for! thanks again.
My old '94 W/T1500 had the 3.73:1 gears, stock. Bought the truck new in SLC, UT, so the high elevation may have played a part. Was a V6 / automatic 2WD RCLB.
All the local Pick-N-Pull type salvage yards get $150 for those axles, and don't care what ratio or year.
Why is yours failing? Been overloading it? If so, get a 3/4-ton axle instead. Not 1-ton, as the spring centers are closer.
Also, there's no reason to avoid the 4WD axles.
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Old 01-28-2012, 08:26 AM
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To my understanding all the 3/4 ton axles were 6 and 8 lug? Is that true?
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