F 250 4WD Pickup V8-6.9L DSL (1983)
Brake Proportioning/Combination Valve: All Technical Service Bulletins
Brakes (Rear) - Sensitivity
Article No. 83-22-17
BRAKE - REAR - SENSITIVITY - SINGLE REAR WHEEL VEHICLES OVER 8500 GVW W/6.9L OR 7.5L ENGINES
LIGHT TRUCKS 1983 F-250/350
Rear brake sensitivity on moderate to heavy brake applications with empty or lightly loaded vehicles, can be alleviated by replacing the existing brake
differential valve with a 275 psi proportioning valve (E0TZ-2B257- A). The procedure for making this installation is as follows: