Rear Axle Spline

[94firebird]

I'm lookin into buying a 3.73 gear and a posi trac differential but i dont know how many splines there are on my rear axle...i know i can find out by taking off the rear axle cover and count but is there an easier way becuase i dont want to take my rear end apart until i get my new parts? BTW, I have the 3.4 w/Auto.

[PiLOTLiTE]

I'm not 100%, but I'm pretty sure its 28.

[94firebird]

ya i think its either 26 or 28 im not sure which of the 2 it is

[Silver97Camaro]

If I were you man I would call a GM dealer. I mean the parts people should be able to tell you I would think. I mean if you can order factory axles though them they should be able to tell you what spline they are. [img]graemlins/burnout.gif[/img]

[94firebird]

OK, I called the dealership and they couldn't tell me. What's up w/that? If any of you guys know, help me out.

[Silver97Camaro]

Man that's weird that they were not able to tell you. Well, I'm not 100% sure but I would almost be willing to bet that we have 28 spline axles. But I'll try and find out for you to be sure.

[ May 24, 2002: Message edited by: Silver97Camaro ]</p>

[Silver97Camaro]

Well, 94firebird I looked though all of my service manuals I use at work (and use for my self at home on my car). I came up with nothing. Now I did go to a salvage yard that I know of Trans Am Creations and they have rear ends that you can buy. For the 93-97 10-bolt rears they say that they have 28 spline axles. Sorry man but I think that's the best I can do to help out. Here is the link to the page I was referring to. Trans Am Creations. Scroll about 1/2-2/3 way down the page and you will see what I'm talking about OK. Hope this helps. [img]graemlins/burnout.gif[/img]

[94firebird]

thanx for the help..