Tell me EVERYTHING to do..or better yet everything I need, as the garage will be doing it.
I will be keeping the orginal Axle, and it is a 1991 Z.
I was looking at the kits on
http://www.jegs.com/cgi-bin/ncommerc...25&prmenbr=361
And not even sure of which one to order, and is there anything else needed?

Thanks in advance sooo much!!

Troy

 

well...stuff you'll need will be the 3.73 ring gear and pinion, but you're going to want more, like probably new bearings, oil, gaskets/seals and so on. and a feeler gauge will come in handy when measuring the backlash. i think GM had their's inbetween .08 and .1 right? does that sound right guys? And those packages on JEGs there are for a 7.5" so you better hope that's what you got, and it's 99% probably not, it's probably a 7.625". and i hope you aren't wanting a posi also, cause i remember not too long ago i was asking stupid questions about that . Anyways, in short,

Needed parts:
-3.73 gears
-preferably new small parts (bearings, oil, those things)
-feeler gauge
-a good instruction guide
-and maybe a machanic that knows what he's doing

Hope this helps. and for everyone else, did i miss anything?

 

Whatever gear ratio or other parts you order make sure that gear set fits your 2-series carrier.

 

Or... upgrade to a posi unit that has 3 series and then later on down the road you can easily find higher ratio 3 series gears.

 

backlash isn't between .08 and .1, more like .004 to .010. you won't need a feeler gauge for anything, an indicator and mag base would be handy to have. a 7.5 is a 7.62, same thing differant spelling.

you'll need th gear to fit your carrier, or a shim if that applies, an install kit, precission tools, common hand tools, press, bearing seperator and a manual. learning how to use the search function would help too

 

Good Good, i'm learning, i'm learning

So correct me if I am wrong...I will order GM 7.5'' 10-Bolt Ring and Pinion with Install Kit, 3.73 Ratio, 41-11 Teeth, Fits 3.08 and numerically lower (2-Series) carrier that includes a install kit.

http://www.jegs.com/cgi-bin/ncommerc...25&prmenbr=361

Is there anything else? I have heard about some kit to re-adjust your speedo?
Thanks again!

 

if you are replacing the open with an auburn or eaton posi the carrier count doesnt matter right? just axle spline count.

 

Well thanks guys...the 2.73 to 3.73 went excellent...that it is a much more fun rear end!
I also had the speedo gears changed today....super article here on how to do it: Untitled

 

HEY MAN! thats a nice looking car .