Drum to Disk Brake Conversion
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stephenssei
- SLE Member

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- Location: Saint Augustine, FL
Drum to Disk Brake Conversion
Hey i'm looking to change my rear drum breaks on my 94' SE, I was wondering if any other members have done this, and what kind of price range I would be looking at.

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00Beast
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Re: Drum to Disk Brake Conversion
It has been done, by member MattStrike, but it involved custom machined brackets, and I can't remember if he ever got the parking brake to work. Probably did, but I can't remember for certain.
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Re: Drum to Disk Brake Conversion
It's doable without custom machining.
http://www.pontiacbonnevilleclub.com/fo ... 39657.html
Cliffnotes: you need a set of rear disc brake calipers and brackets from a Cadillac, front rotors from a '86-'91 H-body, will need to weld to retain the e-brake, and an aftermarket adjustable proportioning valve (completely remove the old ones). The adjustable valve is needed to fine tune the front/rear bias so the rears don't lockup before the fronts.
If I were to do this again, I'd try to use the '00+ rear calipers if I could get away with a simple waterjet part. But the Cadillac brakes are kinda overkill as it is so no real complaints here.
http://www.pontiacbonnevilleclub.com/fo ... 39657.html
Cliffnotes: you need a set of rear disc brake calipers and brackets from a Cadillac, front rotors from a '86-'91 H-body, will need to weld to retain the e-brake, and an aftermarket adjustable proportioning valve (completely remove the old ones). The adjustable valve is needed to fine tune the front/rear bias so the rears don't lockup before the fronts.
If I were to do this again, I'd try to use the '00+ rear calipers if I could get away with a simple waterjet part. But the Cadillac brakes are kinda overkill as it is so no real complaints here.
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The Fleet:
'93 SSEi - Twincharged + manual Build thread
'97 Camaro - Top swap
'05 STS - V8, AWD, her DD
'92 Trofeo - Fair weather DD
'99 Montana - top swap 3800
'04 Sierra 2500HD - LLY Duramax
Current project:
Something cool, trust me.
Upcoming projects:
'92 Bonneville SSE
'87 LeSabre T-type
'67 LeSabre
Gone to greener pastures:
'84 Sierra Classic - Twin turbo 3800
'97 LeSabre - Top swap
RIP:
'86 LeSabre - pictures
'93 SE - L67
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Re: Drum to Disk Brake Conversion
I'm the #2 guy to do it. Only custom work is creating a simple bracket for the e-brake cable. Granted when applied the force is weak, but its better than nothing, and its legal.
I have pics posted on the FB group which I can repost here for you later tonight so you get ideas.
I have pics posted on the FB group which I can repost here for you later tonight so you get ideas.
1993 Bonneville SE "Old Ironsides" 244,xxx - Junked.
1996 Bonneville SSEi "Double Trouble" 164,xxx - Stock
1997 Bonneville SSEi 40th "Purple Spaceship" 204,xxx - Aeroforce Interceptor, B&M 70264 Trans Cooler, Intense FWI, High-Flow Feline, non-Bose head unit w/ 5 band, Alpine 6x9's, 3.5 MPS, SD Headers, rear disc brake conversion. Future: 1.9 Rockers
1997 Buick Park Avenue "Blue Floaty Thing" 124,000 - Daily Driver/Winter Beater
1996 Bonneville SSEi "Double Trouble" 164,xxx - Stock
1997 Bonneville SSEi 40th "Purple Spaceship" 204,xxx - Aeroforce Interceptor, B&M 70264 Trans Cooler, Intense FWI, High-Flow Feline, non-Bose head unit w/ 5 band, Alpine 6x9's, 3.5 MPS, SD Headers, rear disc brake conversion. Future: 1.9 Rockers
1997 Buick Park Avenue "Blue Floaty Thing" 124,000 - Daily Driver/Winter Beater

