The reason your truck moves when your foot is not on the brake is a matter (I'm assuming automatic as well. If it's a manual, it's because you are on a hill and with the clutch disengaged, or pushed to the floor you are in neutral) of the torque converter is moving, so the transmission turns moving your truck. Auto transmissions are designed to slip the converter when you are braking, but when you let off, the torque converter can move the fluid, turning your transmission, causing fluid to flow through the torque converter and lock up clutch, this is what moves your main shaft in your transmission. And with nothing to stop the wheels from turning, because you aren't on the brake, the truck will begin to move.

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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!