/could anyone give me a little advice. I recently bought a gmc sle 1500 p/u. The kid I bought it from said he had Monster Truck in Florida buid the trany for it. 2 weeks later I lost 3rd gear (automatic). The trany hot light came on and before I could pull over safely the red light came on to idle engine soon. I let it idle for about 10 minutes and the light went out. As I proceded home I noticed 3rd gear not kicking in right. Checked the fluid and found out that the drain plug had been leaking and it was quite low. Now when it shifts out of 2nd it won't shift into 3rd. When it tries I don't like the little noise it makes. I recently bought a stock trany used. My uestion is can I drive the truck without jumping into the Super Charger with this trany or would I be better off putting in the convertor from the other one.