I am getting a bit flustered here with this. I've replaced all my brakes, including the springs in the rear trying to get rid of this issue. Today I was kind of in a flexing situation, completely stopped and noticed my ABS light came back on. I've taken the sensor out of the rear end and cleaned it, my front sensors aren't dirty that I know of. Wheel Bearings aren't loose or making no noise. Rear Axles are okay. What could this be? It seems to disable my ABS braking system till I start and restart the truck, in which it just comes back on the moment there is any brake slippage. I'd prefer my ABS because when I slam my brakes down the floor it locks up and scoots, rather then the nice subtle stop I got before.

What could this be? Any suggestions?

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2004 Ford F150 Automatic FX4 SuperCrew 5.4L 3V Triton V8, No Muffler, true dual straight pipes, 3.73 Gears, 18" rims with Wrangler A/T's
White 2004 Ford Ranger XL, Auto, 4.0 SOHC, 4x4 Base Model, 16" Explorer Rims. 3.73 Gears, No muffler(Sold)
White 1997 Ford Expedition XLT 3inch Suspension lift, 38 Firestone M/T's 98 4.6L Police Interceptor high flow injectors, Super 44, brand new rebuilt transmission, with 3.73 gears(Not mine no more)