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I have a 1963 Ford Galaxie 500 with drums all around. Has a new master cylinder but after a 10-15 mile drive the front and rear brakes stick on. Jacked it up and can’t spin fronts at all until opening a bleeder than they will free spin. Thinking maybe master cylinder push rod length out of adjustment but it doesn’t start to stick the brakes until after driving for a little bit. Any advice would be appreciated
 

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Brakes stick after driving because the brake fluid warms up/gets hot and expands.

Your symptoms are that the M/C push rod is too long and doesn't allow for the expansion of the hot brake fluid.

M/C push rod needs to have a bit of clearance to allow for hot fluid expansion.

Either that or there is something wrong with the new M/C.
 
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