Hi, First Merry Christmas and a happy new year to everyone. My car is a 94 mustang gt, the car is painted dark tourmaline metallic and has 18 X 9 Saleen replica wheels. The problem I have is when I lift the back of the car and let the tires spin in the air and come to a stop, the back wheels only stop for a moment then begin to move slowly with the brakes completely apply. Is this normal or there is something wrong with my brake system? Already install new master cylinder, new brake calipers in the back, PBR calipers in front, russell streel legal brake lines, new rear center brake hose and drilled and slotted rotors. Right now the engine is stock, but the transmission(AODE) has been rebuild with upgraded parts like transgo shift kit, mechanical diode, hardened intermediate shaft and many other things. The differential has 3.73 gears and has been completely rebuild including the posi unit. For the engine, since this is my daily driver and don't have many money to spend, I already has to upgrade it, Explorer heads and intake, intake elbow, Edelbrock 65mm throtle body, c&L intake calibrated for 24pounds injectors, 24 pounds injectors, 1.7 cobra roller rockers and an adjustable fuel pressure regulator. Almost all was buy through ebay. Still need to buy bbk shorty headers, spark plug wires, gaskets, the spring kit for the heads and send the heads to the machine shop. Sorry about the long post but need you to know everything about the car so you can help me. Thank You.