Quote:
Originally Posted by oil pan 4
There are 3 things I know of used to ensure the brakes drag.
1 hardware, spring holders, nuts and bolts were added to calipers and pad backing to retract them. But the set up needed to be adjusted constantly.
2 On newer vehicles some engine vacuum is applied to the braking system some how to help remove brake drag from the rotor at highway speeds.
3 put properly functioning drum brakes all around.
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Yes, many vehicles add V or Z springs between the pads to keep them off rotor .Thes springs are not strong so there only for the pad, not the pistons as they should do it by themselves .
And , right all the hardware needs to be keep lubed. the inner pads on many back brake housings get rust, crude that stops them from moving correctly .