## GM Cars Equipped with the TH200C Transmission
The TH200C transmission was a three-speed automatic transmission produced by General Motors (GM) from 1965 to 1987. It was a popular transmission used in a variety of GM vehicles, including cars, trucks, and vans.
### Cars Equipped with the TH200C Transmission
| Make | Model | Years |
|—|—|—|
| Buick | Regal | 1975-1987 |
| Chevrolet | Camaro | 1970-1981 |
| Chevrolet | Chevelle | 1969-1972 |
| Chevrolet | Corvette | 1973-1982 |
| Chevrolet | El Camino | 1969-1987 |
| Chevrolet | Impala | 1971-1985 |
| Chevrolet | Malibu | 1973-1981 |
| Chevrolet | Monte Carlo | 1970-1981 |
| Chevrolet | Nova | 1968-1979 |
| Chevrolet | Vega | 1971-1977 |
| GMC | Jimmy | 1970-1982 |
| Holden | Commodore | 1978-1984 |
| Oldsmobile | Cutlass | 1973-1984 |
| Oldsmobile | Omega | 1973-1984 |
| Pontiac | Firebird | 1970-1981 |
| Pontiac | LeMans | 1973-1981 |
### Design and Features
The TH200C transmission was a compact and lightweight unit, making it suitable for use in a variety of vehicles. It featured a three-element torque converter and a planetary gearset. The transmission had a single forward gear and two reverse gears.
The TH200C transmission was controlled by a hydraulic governor, which regulated the shift points based on engine speed and load. It also featured a vacuum modulator, which allowed the transmission to downshift under heavy load or when climbing hills.
### Reliability and Longevity
The TH200C transmission was generally considered to be a reliable and durable transmission. However, like any transmission, it could experience problems over time. Some common issues with the TH200C transmission included:
Slipping: This can occur when the transmission fluid is low or dirty, or if the clutches or bands are worn.
Hard shifting: This can be caused by a variety of problems, including a faulty governor, vacuum modulator, or shift solenoid.
Noises: Noises from the transmission can indicate a variety of problems, such as worn gears or bearings.
### Maintenance and Service
The TH200C transmission requires regular maintenance to ensure proper operation and longevity. This includes:
Changing the transmission fluid and filter: This should be done every 30,000 to 50,000 miles.
Inspecting and adjusting the bands: The transmission bands should be inspected and adjusted as needed.
Replacing the governor: The governor should be replaced if it is faulty.
Replacing the vacuum modulator: The vacuum modulator should be replaced if it is faulty.
### Conclusion
The TH200C transmission was a popular and reliable transmission used in a variety of GM vehicles from 1965 to 1987. It was a compact and lightweight unit that featured a three-element torque converter and a planetary gearset. With proper maintenance and service, the TH200C transmission can provide many years of reliable service.