1993 Bonneville Rear Drum to Disc Conversion

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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oceandaemon
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Posts: 5
Joined: Wed Oct 18, 2017 11:53 pm
Year and Trim: 1989 Bonneville Base (+ an L67 3800)

1993 Bonneville Rear Drum to Disc Conversion

Post by oceandaemon »

I am trying to get my newly acquired 1993 Bonneville to perform a bit better in the stopping department and after replacing the front rotors and pads, the results are still not amazing. I found the adjusters on the rear brakes to be completely worn out, along with both drums being pretty badly warped. I have been trying to figure out if a swap would be possible to replace the original drum brakes with discs.


I found some references on this forum to some people trying and possibly succeeding at doing the swap on the same generation of H body Pontiac. Has anyone had any luck actually getting this idea to work?
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95naSTA
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Joined: Wed May 21, 2008 11:47 pm
Year and Trim: 95 SLE
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Re: 1993 Bonneville Rear Drum to Disc Conversion

Post by 95naSTA »

The first and third topic in the performance and brainstorming section are about this swap.
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95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.
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