I got a set of 3.73's out of an S10 blazer today at the junk yard, they're in pretty good condition... main question is am I going to need a ring gear spacer? Since they're the same series carrier they should just drop right in, correct?

 

Yes you are correct im pretty sure. Im about 99% sure

 

Well then, another question, are there any downsides to using GM gears as opposed to double-priced aftermarket gears? I really don't see how there really could be much.

 

Well, I do believe useing GM gears if installed right they will not howl like aftermarkets (which occasionally do not howl). I do not know if there is a difference myself.

 

The 3.73:1 pinion you pulled out,does it still have the bearing(with shim underneath it)on it? that shim would be your starting point for 'pinion depth'
I prefer blazer used 3.73 gears over aftermarket used 3.73 gears.

 

Yeah, it's still got the bearing. Not sure about the shim, I would assume so though. We'll be putting the gears in this weekend. A buddy of mine has done it twice, but for a solid install, is there a guide to proper procedure?

 

i found this one

http://www.chevyhiperformance.com/te...all/index.html

 

Thanks for that, I found another guide out there and they mesh pretty well together. I'm just going to need a bit more instruction on setting backlash and pinion depth... I'll keep reading on

 

Can you provide any updates.How much were the gears?what are the pro,s/cons?Any info will be appreciated.

 

You might want to try and e-mail him. pcgamer4life has not visited this site since 11-14-2010.

Left click on his name, and it will offer you the option to e-mail.