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Old 01-06-2010, 10:06 AM
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1993 gmc c1500 disk brake swap

My rear drum brakes are finally shot. I heard the rear disk setup from a late model b body will fit. Is this true? can i swap the whole rear end easily, or can i just fit the disk setup to my original rear? any help would be greatly appreciated. thank you in advance.

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Old 01-06-2010, 12:28 PM
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Originally Posted by cusz28
My rear drum brakes are finally shot. I heard the rear disk setup from a late model b body will fit. Is this true? can i swap the whole rear end easily, or can i just fit the disk setup to my original rear? any help would be greatly appreciated. thank you in advance.
The whole axle will not swap because the B-body is coil spring and your truck is leaf spring. The rotors and caliper brackets MAY swap if your truck has a 5 x 5" bolt circle.
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Old 01-08-2010, 09:58 AM
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I was looking around and found what you are talking about with the axle not fitting. completely different. I do, however, have a 5x5 bolt pattern. do you know if the axle ends are the same? can i fit the caliper bracket, caliper, and rotor? i know i will have to change the proportioning valve, and maybe the master cyl, but thats ok. do you know how the e-brake is set up? can i still use my original cable?
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Old 01-08-2010, 11:56 AM
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Quote:
Originally Posted by cusz28
I was looking around and found what you are talking about with the axle not fitting. completely different. I do, however, have a 5x5 bolt pattern. do you know if the axle ends are the same? can i fit the caliper bracket, caliper, and rotor? i know i will have to change the proportioning valve, and maybe the master cyl, but thats ok. do you know how the e-brake is set up? can i still use my original cable?
I don't know for sure if the axle ends are the same, but I suspect that they are. The bolt pattern may be different, but drilling new holes should not be a big deal. One place to watch out for is the diameter of the hub pilot on the axle shaft that centers the rotor. You may need to do some slight machining to get it to fit. The e-brake actuation is built into the calipers. Don't know about your stock cables working.
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Old 01-08-2010, 02:38 PM
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sounds promising I'll have to keep my eyes out for a set to mess around with. if it's too much of a hastle, i'll just stick with my drums. Thank you for all the help
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