Gear Install Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chargedstang89 · 07-22-2003, 11:44 AM

Hey All!

I have 3.08's in my '85 GMC 4x4. I'm running 33" BFG's, so needless to say, my truck has no power pulling trailers, or even going up hills for that matter. I'd like to step up to 3.73's, but have never installed gears before. I can build motors no problem, but haven't ever tried installing gears. I have a friend who has all the dial indicators or whatever you need. I was wondering if anyone has or knows of a place of a good technical write up to install the gears in the rear and FRONT differentials. I plan on putting new bearings and everything in there too.

Josh

07-22-2003, 11:44 AM	#1
chargedstang89 Registered User Join Date: Oct 2002 Posts: 90	Gear Install Questions Hey All! I have 3.08's in my '85 GMC 4x4. I'm running 33" BFG's, so needless to say, my truck has no power pulling trailers, or even going up hills for that matter. I'd like to step up to 3.73's, but have never installed gears before. I can build motors no problem, but haven't ever tried installing gears. I have a friend who has all the dial indicators or whatever you need. I was wondering if anyone has or knows of a place of a good technical write up to install the gears in the rear and FRONT differentials. I plan on putting new bearings and everything in there too. Josh



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