I currently have a 9 bolt posi disc rear end with 2.77s
Within the next two months im going to be putting a t56 behind my zz4...
whats the EASIEST, CHEAPEST way to get 3.73 to 4.10's that will last for a while???

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17 from Wichita, KS (previously newbieZ28)
1988 Iroc-Z ZZ4 tpi, ttops, 50k miles on chassis (edelbrock tes, stock tpi) free mods etc coming soon after first 1/4 times!
1985 Z28 LB9 option [STOLEN!] Click here to see

http://thirdgen.bawx.org
K.I.S.S - Keep It Simple, Stupid.

easiest and cheapest? have someone else do it and pay for it too. other than that you have to buy a rear end and swap it.

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ICON Motorsports

1st & 3rd

well, i have a 3.23 10 bolt with a burnt out posi... (out of the 85)
i'm thinking about getting the slp posi, and then just having someone install some gears into that rear end, and then i can put the rear in the car....
the only thing keeping me from doin this is #1 will it be ok with the six speed and zz4?
#2 ill loose my disc brakes..
but it seems like this is going to be the easiest cheapest quickest way to do it...
i was just wondering if i had any other options..

Kream
The 85 axles are 26 spline, they wont work with the slp take outs.

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82 Firebird,355,Cam 224/234, .466/.488,TH350 Tranny,650 HolleyDP,Hooker Headers(I.E. POS) Manual steering
Best 8th et 8.62@80mph.
NEW for 01
A 408,dart iron eagle heads,street dominator intake, 750 SD,cam 229/239, .497/.520, Also a big hole in the hood.
Shooting for 12's.

DAMN!
i hate rear ends