93 Z28 Rear End

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Feb 16, 2004 | 02:20 PM

vtalleyf

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93 Z28 Rear End

I'm wondering if there is anyway for me to find out if I have a 8.8 rear end or a 7.5 rear end. I bought the car used and did not come with the specs.

Feb 16, 2004 | 02:28 PM

Fastbird93

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From: Waynesboro, PA

I do believe that ALL 4th gen cars come with a coprorate 7.5" rear.

Feb 16, 2004 | 02:30 PM

vtalleyf

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So I'm guessing the 12 bolt gears I have aren't going to fit??

Feb 16, 2004 | 02:33 PM

Fastbird93

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From: Waynesboro, PA

Do you have an old school one or a newer aftermarket one. The aftermarket one should fit, but if it's old school then I do believe there's some fabrication to be done but it can be made to fit.

Feb 16, 2004 | 02:38 PM

Ace_437

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Posts: 687

From: Las Vegas, NV

Quote:

Originally posted by Fastbird93
Do you have an old school one or a newer aftermarket one. The aftermarket one should fit, but if it's old school then I do believe there's some fabrication to be done but it can be made to fit.

I think he's talking about just the gears, not the whole rear end.

Feb 16, 2004 | 02:41 PM

vtalleyf

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Yea.....Just the gears...I have Richmond 3.73's in my house but I got them for a 12 bolt rear end. Just need to know if they will fit or if I should send em back.

Feb 16, 2004 | 02:43 PM

Fastbird93

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Joined: Mar 2002

Posts: 4,827

From: Waynesboro, PA

Nope. They're bigger than the 7.5 gears. I'm not sure how big the 12 bolt is though. Just never knew that part. 8.8 anyone???

In any case, you need 7.5" gears.