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Old 10-20-2008, 08:20 AM
red65mustang red65mustang is offline
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reverse overpowers the P brake simply because R is a much lower tranny gear ratio than D and that multiples the motor TQ on the tires signifigantly...

BS numbers just to illustrate:

300ft/lbs of force x 2.46 first gear x 3.55rear gears = 2619ft/lbs of force on the P brake shoe

300ft/lbs x 3.90(?) reverse gear x 3.55 rear gears = 4153ft/lbs of force on the P brake shoe contact patch!!!!


check to see if you are not already at the end of the cables tightening adjustment (the funky threaded rod and nut where the cables are held by the cross piece) due to the cables are stretched or do stretch when pulled....
if yes then just add a bushing or oversized nut to act as a spacer in front of the nut against the cross piece to gain additional cables pre-tensioning tightening threads....

that will limit the handle travel alot,,,mine is fully engaged at just half the possible pull distance....

Last edited by red65mustang; 10-20-2008 at 08:38 AM.
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