What Vehicles Have a TH350 Transmission? A Comprehensive Guide
The TH350, or Turbo Hydra-Matic 350, is a legendary three-speed automatic transmission known for its durability and relatively simple design. It was a popular choice for many General Motors vehicles over several decades, enjoying a long production run from 1969 to 1981. Pinpointing every single vehicle that used a TH350 is impossible due to the vast number of models and variations, but we can explore the types of vehicles and years where you're most likely to find this transmission.
This guide will answer your question and address some common related queries.
Which GM Vehicles Used the TH350 Transmission?
The TH350 was primarily found in General Motors vehicles, spanning across numerous car and truck lines. Here's a breakdown by vehicle type:
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Passenger Cars: The TH350 saw widespread use in a variety of GM's passenger car models. Think Chevrolet Chevelles, Camaros, Monte Carlos, and Novas. Pontiac GTOs, Firebirds, and Grand Prixs also frequently featured the TH350. Buick Skylarks, Oldsmobile Cutlasses, and even some Cadillac models utilized this transmission. The specific years vary considerably, generally falling within the 1969-1981 timeframe.
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Trucks & SUVs: The TH350 was a favorite in GM's truck and SUV lineup as well. Chevrolet and GMC light trucks, such as pickups and Blazers, often used this robust transmission. Its durability made it well-suited for the demands of towing and off-road use.
It's crucial to note that even within a specific model year and make, not all vehicles equipped a TH350. Options like manual transmissions or other automatic transmissions were also offered, depending on the trim level and options package. Consult a vehicle's original specifications or a parts catalog for definitive confirmation.
What Years Did GM Vehicles Use the TH350?
While the TH350's production ran from 1969-1981, its lifespan in various vehicles wasn't uniform. Some models adopted it earlier or continued to use it later than others. Generally, the peak years of TH350 usage were in the 1970s.
How Can I Tell If My Vehicle Has a TH350?
Identifying a TH350 requires a look under the vehicle. Key identifiers include:
- Casting Numbers: The transmission case will have identifying casting numbers. These numbers will vary depending on the year and specific variant of the TH350. A thorough online search using these numbers can confirm the transmission type.
- External Features: While not always definitive, the overall shape and size of the transmission can provide clues. Compare your transmission to known pictures of TH350s online.
- Vehicle Documentation: Owner's manuals, build sheets, or service records can sometimes list the transmission type.
What are the Differences Between the TH350 and Other Transmissions?
The TH350 was a notable transmission, but it's not the only one. Key differences compared to other transmissions include:
- Three-Speed vs. More: The TH350 was a three-speed automatic, whereas later transmissions featured more gears for improved fuel efficiency and performance.
- Simplicity of Design: The TH350 was known for its relative simplicity in design and construction, contributing to its durability.
- Applications: Though widespread in GM vehicles, it's not universally found across all makes and models.
This information should help in your quest to identify vehicles with a TH350 transmission. Remember that always verifying with vehicle specifications is crucial. The prevalence and popularity of the TH350 have led to a large aftermarket parts availability for restoration and repair.
