All I know about the shift box is that it bypasses limpmode by running wires to each soleniod and shifting it manually with toggle switches but i don't know what else to do I've only had this car for 4 months and I've spent well over five hundred on it is their anything else that yall can suggest I mean I don't think it can be the hole trans cause I think it would run much worse. I can be driving it and put it in neutral turn the key off and on and put it back in drive it will shift like normal tell I stop then it right back in limpmode