Quick brake conversion question
Thread Starter
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Joined: Jul 2010
Posts: 258
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From: Niagara falls,ontario
Car: 84 firebird
Engine: 355
Transmission: 700r4 stage 2 shift kit 2500 stall
Axle/Gears: 3.42 posi
Quick brake conversion question
So i have a disc brake rear end from an 84 firebird the housing is in rought shape but the axles and everything else are good(have it all apart) now my question is can i use my drum brake rear end for my 84 firebird and put all the disc brake stuff on it will everything bolt up what else would i need to do?
any and all information will be helpful thanks !!
any and all information will be helpful thanks !!
Joined: Aug 1999
Posts: 19,282
Likes: 103
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: Quick brake conversion question
So i have a disc brake rear end from an 84 firebird the housing is in rought shape but the axles and everything else are good(have it all apart) now my question is can i use my drum brake rear end for my 84 firebird and put all the disc brake stuff on it will everything bolt up what else would i need to do?
https://www.thirdgen.org/forums/tran...-10-bolts.html
JamesC
Thread Starter
Member
Joined: Jul 2010
Posts: 258
Likes: 0
From: Niagara falls,ontario
Car: 84 firebird
Engine: 355
Transmission: 700r4 stage 2 shift kit 2500 stall
Axle/Gears: 3.42 posi
Re: Quick brake conversion question
Check the 10-bolt FAQ (there's a section that covers brake conversion, parking brake cables, master cylinders, and combination valves).
https://www.thirdgen.org/forums/tran...-10-bolts.html
JamesC
https://www.thirdgen.org/forums/tran...-10-bolts.html
JamesC
Are Drum/Disc Axles Interchangeable?
Yes, but the drum axle flange will have to be turned down to fit the rotor.* The flange diameter on the drum shaft is 6.0"; the disc shaft is 5.850" and the ID of the brake rotor is 5.900". (Oddly, there is no distinction made between drum and disc when ordering after market axles.)
Can I Swap Discs to My Drum Rear End?
Yes. Though the housing ends can be modified (https://www.thirdgen.org/ls1reardisc),
the easiest method is to purchase a kit from Ed Miller: http://www.flynbye.com/catalog/i30.html
Joined: Jul 1999
Posts: 12,089
Likes: 125
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Quick brake conversion question
Cut the flanges off (after measuring) using the caliper brackets as a template and drill 4 new holes. Did this on my '88. Had a built 10 bolt but it was drum, wanted the factory disc, didn't feel like getting '89+ PBR parts.
If it's out of center a little bit, that is not at all critical, as long as the pad rides within the friction surface of the rotor.
-- Joe
If it's out of center a little bit, that is not at all critical, as long as the pad rides within the friction surface of the rotor.
-- Joe
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