Ok guys, I have a 1989 C1500 with a 5.7 TBI motor and a 700R4 transmission. The transmission is bad. If I put a TH350 in place of the 700R4, will the engine still run right without the wires hooked up to the 700R4? Like the VSS? I know the speedo probably won't work, but that's ok. I just need to know if the engine will still run right with the Th350 or if it needs some transmission input into the computer? Thanks.