Just got a 1986 Toyota pickup 2wd long bed, carbed 22r ,I believe it has 308k miles ,but the odometer and speedometer have stopped working ,but it cranks ,runs,and drives just fine unless you press the brakes to hard (brakes are very stiff and very grabby) then the passenger front wheel brakes lock,to fix I have to loosen the brake lines connection to the master cylinder,and pump the brakes until the pedal loosens up a bit any ideas?