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04-16-2013, 10:45 PM
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Sb 400 club
Join Date: Nov 2005
Location: NH / MA
Posts: 2,746
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Rear disc conversion issue
The conflicting info out there on this sucks!
Info on the setup: 77 k10 with axles out of a 85 K20 HD. Stock 77 master and vac brake booster. Stock 77 proportioning valve Stock 77 front calipers 1976 caddy elderado calipers on the rear. The problem: After multiple bleedings the trucks pedal goes to the floor. Fronts are still working but the rears are not. So what could be causing this? I have read online about disc proportioning valves, residual valves, a adjustabe proportioning valves. I can't afford to just throw parts at this. Is it possible to gut the proportioning valve? Any info would be great as I need my truck!
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 1984 chevy c10, built 400sb,.(SOLD )77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed  1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out |
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