1. TH700R4 Automatic Transmission: This 4-speed automatic transmission was commonly paired with the 350 engine in 1989 Chevy 1500 trucks. It offers overdrive, which improves fuel economy and highway cruising.
Compatible Years and Models:
* 1987-1993 Chevy 1500/2500/3500 Trucks with 350 engine
* 1988-1999 GMC Sierra 1500/2500/3500 Trucks with 350 engine
* 1982-1993 Chevrolet Camaro with 350 engine
* 1982-1992 Pontiac Firebird with 350 engine
2. NV3500 5-Speed Manual Transmission: This heavy-duty 5-speed manual transmission was also available with the 350 engine in 1989 Chevy 1500 trucks. It provides better control and towing capacity compared to the automatic transmission.
Compatible Years and Models:
* 1988-1993 Chevy 1500/2500/3500 Trucks with 350 engine
* 1982-1993 Chevrolet Camaro with 350 engine
* 1982-1992 Pontiac Firebird with 350 engine
Notes:
* Ensure the transmission you select has the correct bell housing pattern to mate with the 350 engine.
* Check the transmission's condition, including fluid level and quality, before installing it in your vehicle.
* Consider having a professional mechanic perform the transmission swap to ensure proper installation and operation.