I PUT A 92' V6 4.3 TBI IN MY 48 1/2 TON BACK IN 94'. I USED THE 700R TRANNY THAT IT CAME WITH AND ALL THE ORIGINAL WIRING AND COMPUTER. MOTOR FIT IN GREAT AND RUNS GREAT.I HAVE A PACER FRONT CROSSMEMBER.I RECOMEND YOU USE AN EXTERNAL FUEL PUMP. YOU WILL HAVE TO MAKE A RETURN FUEL LINE INTO GAS TANK ALSO.