My friends Truck has a TH 400 Tranny It seemed to work fine before but now it won't shift out of second gear. The Module in the side went bad so we replaced it with a new one out of a TH 350. He was told that this would work because you could adjust a screw inside the vacume port. Now there is an oarnge wire on the driverside of the transmission. What is this for??? We changed cabs on the truck and It's not pluged in anymore. He swears to me it has never been pluged in since he got it. The wire comming from the cab was just hanging. Also when you do drive the truck and it gets to the top of second gear and you let off the gas it just coasts to a stop. You can do this in first gear also. The transmission dosen't go "against" the engine to slow the truck down like it normally would. It used to because thats how we slowed it down when the brakes were not working right when he first got it Before we changed the body. So my questions are 1. What dose the Orange wire do and how can we hook it back up if we need it. 2. Dose the TH 350 Module make a difference? And/or 3. What the heck is wrong with this thing. Thanks any help would be great. He's planning on taking this rat trap to Bloomsburg for the 4wheel jambo. We got to get this straightend out.