Disc vs. Drum Brakes - To Upgrade or Not - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-23-2006, 04:35 PM   #11
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Quote:
Originally Posted by Shadow
Pesonally the 95 SSE I had stopped better than my GXP with 4 wheel discs.
but it was also a much lighter car.
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Old 05-23-2006, 05:37 PM   #12
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Old 05-23-2006, 07:09 PM   #13
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people keep saying better rotors, drums, pads, shoes. it would be nice to have some brand names, part numbers and sources for us trying to figure out what upgrades to makes. just a thought.
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Old 05-24-2006, 12:14 AM   #14
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This may be what you are looking for. This is where this conversation stemmed from.

http://www.bonnevilleclub.com/forum/...ic.php?t=54835
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Old 05-24-2006, 01:50 AM   #15
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I have driven the same car with drums and disks in the back; no perceptable difference.
Why did I convert it? Much easier maintenance. The drum/disk is also the bearing hub on the VW. Just to inspect the drums required pulling the wheel bearings.

Disks arn't always lighter; it varies with application.

Converting to disks requieres:
Caliper mount
caliper
modifying the rear hard line to addapt to the new flex line
parking brake cable
proportioning valve
may require reprograming of ABS

The correct proportioning valve is absolutly vital. The wrong valve will yield too little line pressure (rear brakes do nothing) or too much line pressure (rears lock up and the back of the car passes the front)

This is all accedemic as there is no known source for upgrades.
The only real chice is to use quality, performance oriented pads and shoes, and keep the rears adjusted.
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