Re: Soft brake pedal, Vaccum pump?
Check the fitting on the rear drums, mine were leaking there. i could tell how bad because it left stains on the tire. Also check the brake lines headed to the rear drums mine blew out next to the tank selector and so did my dads and a couple friends had it happen to. Hope any of this helps
1997 F350 7.3 Powerstroke, 4x4, 135,400 miles, 4 1/2" up front 2" out back, 35" Kuhmo M/T's, 3" dp, 4" with no cat, K&N, Triple Auto Meter Gauges, IDM Mod, rebuilt E4OD, Beans Tunes