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Author Topic:   GM 7.5 Ring and Pinion Install Questions
Dirt Full Roller

Total posts: 39
posted June 20, 2004 03:46 PM  
First of all, I have an '85 metric with a 7.5 rear end currently with 3.42 gears. I can't for the life of me find a stock 7.5 rear end with the 2.73 gears that I need. I have purchased a used open carrier with the 2.73s, races, and bearings already pressed on and I am thinking about doing the swap myself. I have found a few articles detailing the install and had a couple of questions. Can I reuse the bearings and races that came with the carrier and gears or should I install new ones? Is it worth it to buy a dial indicator and in-lbs torque wrench or can I rent them? Any help, tips, or horror stories welcome.


Dirt Roller

Total posts: 16
posted June 20, 2004 04:03 PM  
i've always just used all the parts that came in the donor rearend. we got our 3.42 out of an 85 f car, i used the carrier bearings races and spacers right out of it with no prob. you might want to buy a new crush sleeve although i have reused them also. i know most guys would not but if it works and it's

Dirt Full Roller

Total posts: 39
posted June 21, 2004 03:30 PM  
What is a decent price for installing gears? I had someone want to charge $250.

Dirt Forum Champ
Total posts: 516
posted June 21, 2004 05:46 PM  
Does that come with vaseline or without?

Dirt Full Roller

Total posts: 46
posted June 21, 2004 09:15 PM  
I would assume for $250 it included the gears. It is only a couple hours work at best, last I checked most places wanted about $100. As easy it is, I would at least put them in myself and maybe just take the rearend to have the backlash set. Only a few bucks that way.

Dirt Full Roller

Total posts: 39
posted June 22, 2004 06:10 AM  
I waiting to hear back from a sponsor that might be able to install them, but if not, I think I might just buy the tools I need and do it myself. I guess the worst thing I can do is screw it up and have to buy more gears, but they weren't that hard to find anyway.



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