I need help with drum to disk swap.

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Jan 27, 2013 | 04:07 AM

lethaldomestics

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I need help with drum to disk swap.

i have a 1987 Firbird 305 TPI 700r4 Drum disk rear end.

i want to swap in a 1985 z28 3.43 gear rear disk break set up i found online (CL). i have searched around a bit and i couldn't find much. i was wondering what i have to do to get the breaks working properly. will it pretty much all bolt up? i do know i have to go get the good set of calipers i saw at the junk yard

. should i grab anything else?

i m sure i can snag the parts for the job
Also are there any variation of caliper type?

Jan 27, 2013 | 05:11 AM

J91

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Joined: Jan 2009

Posts: 1,126

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From: Columbus Ohio

Car: 91 Z28,64ImpalaSS4094spd,67 Galaxy

Engine: Dart 415Profiler hd,cmprlrs,Hlly750

Transmission: Built 700R4, 3200 stall

Axle/Gears: 3:89 Moser 9"

Re: I need help with drum to disk swap.

Quote:

Originally Posted by lethaldomestics

. should i grab anything else?

i m sure i can snag the parts for the job
Also are there any variation of caliper type?

Go to the Brake Board and sart reading, all the info you need is there, first off determine if that rearend is a 9 or 10 bolt......

Jan 27, 2013 | 06:37 AM

JamesC

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Joined: Aug 1999

Posts: 19,282

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From: Lawrence, KS

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: I need help with drum to disk swap.

Quote:

Originally Posted by lethaldomestics

i want to swap in a 1985 z28 3.43 gear rear disk break set up....

There is no 3.43. A 10-bolt is 3.42, a 9-bolt 3.45.

Check the 10-bolt FAQ sticky above for info on master cylinders, combination valves, parking brake cables, caliper types an so on.

Since the swap is common a search should provide a wealth of information. Good luck with your project.

JamesC