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Andy4639 · 06-17-2020, 11:12 AM

I'm going through this now on the ramp truck. The master cylinder I bought was for a 72 C 10 with disc brakes & drums. It was said it was for any Chevy truck for that year. Manual are power, c-10, c-20, c-30.

I'm not home right now but the guy doing the swap says it has a bigger opening than the booster. I will be going home tomorrow and Friday will be taking the parts back and see if we can figure them out, I may look at the 1975 master and see if it looks right.

I can say this though, when I bought the ramp truck it had manual drums all around no power. I bought a power booster for a 71 factory disc to drum truck and installed it with the drum to drum master I had. It works fine, But I did have to swap the push rod out for a shorter one.

06-17-2020, 11:12 AM	#26
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Manual Disc master cylinder I'm going through this now on the ramp truck. The master cylinder I bought was for a 72 C 10 with disc brakes & drums. It was said it was for any Chevy truck for that year. Manual are power, c-10, c-20, c-30. I'm not home right now but the guy doing the swap says it has a bigger opening than the booster. I will be going home tomorrow and Friday will be taking the parts back and see if we can figure them out, I may look at the 1975 master and see if it looks right. I can say this though, when I bought the ramp truck it had manual drums all around no power. I bought a power booster for a 71 factory disc to drum truck and installed it with the drum to drum master I had. It works fine, But I did have to swap the push rod out for a shorter one. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. Last edited by Andy4639; 06-17-2020 at 11:19 AM.