Started truck and put it in reverse, would not going into reverse but would go forward, moved the gear selector through the full range several times until it finally went into reverse. Then it would not go into any forward gears. Removed transmission from truck and rebuilt finding a broken pressure return spring in the forward clutch assembly which I replaced. installed transmission back into truck and it has the same problem of reverse only. Any ideas? I did not remove the manual gear selector valve from the valve body but every thing else was as I put a transgo reprograming kit into it.