Re: ‘69 c10 Brake master reservoir layout
To reinforce what was recommended above:
1. Get a M/C for a 71-72 C10. It will have a larger front reservoir which feeds the front disc calipers via 3/16" line. It will also have a 1-1/8" bore, whereas the 69 M/C has a 1" bore.
2. The proportioning valve should be in series with the rear brake line, which is 1/4". Crack it wide open to start, and don't adjust it unless the rears lock up before the fronts during a panic stop.
3. If you already have a 3/16" rear line, I'd probably go with it. Square body trucks had 3/16" front and rear, at least that was true for my 82 C10.
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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