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Message: [QUOTE="Peroni, post: 1509938, member: 315"] Been helping to try and sort this truck out but am about out of ideas on it. It's a 95 F350 with a 02 rear axle swapped in with hydroboost added. It is very difficult to stop, about have to stand on the pedal even at lower speeds. All 4 calipers are rebuilt NAPA Eclipse, pins and sliders are lubed and moving freely. Flexible lines are new braided stainless from Crown. Hard lines have been thoroughly inspected and didn't see any pinched or kinked spots. Have good flow of brake fluid from each bleeder. Rotors up front are cryo treated slotted Frozen Rotor brand. Rears are slotted Raybestos pro grade. Has the blue Motorcraft superduty pads front and rear, they are not binding in their guides and do not appear glazed. Hydroboost unit is a new Motorcraft part. I modified his brake pedal to F Superduty standards so the pedal rod lines up right. All hoses are new with no leaks or kinks. Master cylinder is a Raybestos brand with the larger bore. Still using the C2 style power steering pump but the one in there is a brand new not reman unit and actually is working very well. Using Ford Mercon fluid as well as Ford branded brake fluid. What I've done so far besides a visual inspection is to vacuum bleed all the brakes again. Also went through the hydrobooster bleed procedure while pulling a vacuum on the reservoir. The pedal is hard with no excessive travel or noise from the pump and does not sink to the floor. With truck off I pumped the pedal a few times, held it down then started engine and pedal kicked back so the booster is working. Have not observed any leaks anywhere. Only thing I haven't messed with yet is the RABS valve. Was thinking of bypassing it to see what happens. Has no brake or ABS light on. Does anyone have a clue as to what might be wrong or can think of something I missed? This truck's braking system is very similar to mine yet my truck stops great and this thing is an absolute bear! [/QUOTE]