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Mod | | | Forums66 Topics128,070 Posts1,055,892 Members48,428 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#46942 06/28/2005 3:18 AM | Joined: Nov 2002 Posts: 55 Member | | Member Joined: Nov 2002 Posts: 55 | I bought a kit from Classic Performance Products (CPP) www.classicperform.com I asked the same question you have when I ordered the kit. The difference between drum/drum or disc/drum or disc/disc is the proportioning valve. In the CPP power booster kit, there is a proportioning valve attached to the master cylinder. When you want to convert to disc/drum, you swap in a new proportioning valve. The master cylinder and booster stay put. | | |
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