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rear disc swap!!??

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Old 07-07-2010, 01:37 PM
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Join Date: Apr 2010
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Car: 1987 iroc-z
Engine: 5.0 305 carb
Transmission: 700r4
Axle/Gears: stock 10 bolt
rear disc swap!!??

i have an 87 iroc with rear drums. i was digging through the junkyard and found a 85 firebird with rear disc brakes. do you know if i could take the whole rear end off and it be compatable with my car?
Old 07-07-2010, 02:13 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: rear disc swap!!??

Originally Posted by dvdlovesbball
i have an 87 iroc with rear drums. i was digging through the junkyard and found a 85 firebird with rear disc brakes. do you know if i could take the whole rear end off and it be compatable with my car?
Yes. Get the combination valve (Don't bother if it's iron type as it won't fit your 87), parking brakes cables, and speedo gears (if the ratio is different from the ones in your car) if possible.

JamesC

Last edited by JamesC; 07-07-2010 at 08:54 PM.
Old 07-08-2010, 09:53 AM
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Car: 88 GTA/86 C20 Burb/91 325i
Engine: L98/454/M20
Transmission: 700R4/NV4500/Getrag
Axle/Gears: 3.27 9-bolt/3.73 14 Bolt/3.73 IRS
Re: rear disc swap!!??

Just did it myself, direct bolt in (I went from a 10-bolt to a Borg Warner 9-bolt). Make sure you grab the disk brake lines on the axle as well, the drum brake lines are not the same.

-Levi
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