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- - 1985 Z-28 (Not IROC) Rear End (https://www.camaro5.com/forums/showthread.php?t=3414)

aga6943

03-27-2008 03:41 PM

1985 Z-28 (Not IROC) Rear End

I have been building a 1985 Z-28 with an 350 C.I. engine replacing the origiginal 305. The car came with an automatic that I had rebuilt. My question is: What rear end did a stock 305 1985 Z come with?

mario82z28

04-22-2008 02:05 PM

The car probably came with the 10 bolt rear end with 3.73 gears

CamaroSpike23

04-22-2008 04:08 PM

Quote:

Originally Posted by mario82z28 (Post 64343)

The car probably came with the 10 bolt rear end with 3.73 gears

not with an auto it wouldnt have. maybe 3.23s or even 2.73s.

mario82z28

04-22-2008 04:16 PM

either way I'd put in a 4.10 posi unit that's what i did

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