We have replaced all calipers, flexible hoses, master cylinder, and power assist booster on our 1985 Class A P30 Chevy chassis motorhome. After traveling 2 to 3 miles, the travel on the brake pedal becomes less and less, until there is no travel left and the brakes are seized up. I am at a lose for the cause of this, as everything is now new. Any suggestions as to what could be causing the brakes to seize??
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