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PR104E Hold Off Valve - GM1967-69 F-body Camaro / Firebird, 1968-69 X-body Nova
GM Valve Notes: This item is an exact reproduction
disc brake hold off valve. This valve was used to hold off pressure to the rear
brakes so the front brakes would go on a split second before. During extreme braking
conditions, this valve prevented the car from getting sideways and evened out
braking loads. This valve is located below the drivers side door and makes the
front to rear brake line 2 pieces. In 1967-69, these cars had three valves that made up the disc brake system.
The valves include: above hold off valve PR104E, distribution block, and round golf
ball valve PR105. In 1971, these three pieces were combined into one valve which
simplified the system. This valve is on all disc brake cars and big block
applications. |