The 200R4 transmission, a four-speed automatic overdrive, gained popularity for its versatility and efficiency․ It was a significant upgrade over earlier three-speed automatics, offering improved fuel economy and performance․ Manufactured by General Motors (GM), it found its way into a diverse range of vehicles during the 1980s․ Understanding which cars featured this transmission can be helpful for enthusiasts, restorers, and those seeking a reliable classic․
GM Vehicles Featuring the 200R4 Transmission
The 200R4 transmission was primarily used in GM vehicles․ Here’s a breakdown of the models that commonly featured it:
- Buick: Grand National, Regal T-Type, Regal Limited, Electra, LeSabre
- Chevrolet: Monte Carlo SS, El Camino, Malibu, Caprice, Impala
- Oldsmobile: Cutlass Supreme, Cutlass Salon, 442, Delta 88, Custom Cruiser
- Pontiac: Grand Prix, Bonneville, Parisienne
- Cadillac: Fleetwood Brougham, DeVille
Factoid: The Buick Grand National and Regal T-Type are particularly sought after because they were equipped with a stronger version of the 200R4, often referred to as the “BRF” code․ This version was designed to handle the increased power of the turbocharged engines․
Identifying a 200R4 Transmission
If you’re trying to determine if a vehicle has a 200R4 transmission, there are a few key things to look for:
- Pan Shape: The 200R4 has a distinctive pan shape that is almost square, with a corner cut off․
- TV Cable: It utilizes a TV (Throttle Valve) cable that connects to the carburetor or throttle body․ This cable is crucial for proper transmission function․
- Transmission Code: Look for a code stamped on the transmission case․ Common codes include “BRF,” “BQ,” and others specific to the vehicle application․
Important Considerations
While the 200R4 is a generally reliable transmission, proper maintenance is essential․ Regular fluid changes and adjustments to the TV cable are crucial for longevity․ Over time, the transmission may require rebuilding, especially if it has been subjected to high horsepower applications․
Why the 200R4 Was Popular
Several factors contributed to the 200R4’s popularity:
- Overdrive: The overdrive gear significantly improved fuel economy compared to older transmissions․
- Compact Size: Its relatively small size made it suitable for a variety of vehicles․
- Adaptability: It could be adapted to handle a range of engine power levels․
FAQ: Frequently Asked Questions About the 200R4 Transmission
What is the difference between a 200R4 and a 700R4 (4L60)?
The 200R4 is generally considered a smaller and lighter transmission than the 700R4 (later known as the 4L60)․ The 200R4 is also known for being potentially stronger in some applications, especially when properly built․
How can I tell if my 200R4 is a “BRF” version?
The “BRF” code will be stamped on the transmission case․ This code indicates that it was specifically designed for higher performance applications, like the Buick Grand National․
Is the 200R4 a good transmission for a performance build?
Yes, with proper modifications and upgrades, the 200R4 can be a very strong and reliable transmission for performance applications․ It’s often preferred over the 700R4 in certain situations due to its size and potential for strength․
What kind of fluid does a 200R4 transmission use?
Dexron III/Mercon automatic transmission fluid is typically recommended for the 200R4․
How often should I change the fluid in my 200R4 transmission?
It’s generally recommended to change the fluid every 25,000 to 30,000 miles under normal driving conditions․ More frequent changes may be necessary for heavy-duty use or performance applications․
