What Vehicles Have a TH350 Transmission? A Comprehensive Guide
The TH350, short for Turbo Hydra-Matic 350, is a three-speed automatic transmission renowned for its durability and widespread use across various General Motors (GM) vehicles. Its popularity spanned decades, making it a common sight in classic cars and trucks, as well as some later models. Pinpointing every single vehicle ever equipped with a TH350 is practically impossible due to the sheer number and variations in production runs. However, this guide will provide a comprehensive overview, including common makes, models, and years.
Which GM Vehicles Used the TH350?
The TH350 was primarily a GM transmission, meaning it was found across a broad range of their vehicles. While definitively listing every model is an insurmountable task, we can highlight some of the most prominent makes and model years:
- Chevrolet: Chevelles, Camaros, Impalas, Novas, Monte Carlos, and various trucks (especially from the 1960s-1980s) were commonly equipped with the TH350.
- Pontiac: Firebirds, GTOs, Grand Prixs, and LeMans models frequently featured the TH350.
- Oldsmobile: Cutlasses, 442s, and other Oldsmobiles from similar eras often incorporated this transmission.
- Buick: Rivieras, Skylarks, and LeSabres were among the Buick models utilizing the TH350.
- GMC: Many GMC trucks during the TH350's production run used this transmission.
Important Note: The exact model years within these makes vary significantly. For instance, the TH350 might have been standard in a particular model for only a few years before being replaced by a newer transmission. Consulting a vehicle's build sheet or owner's manual is the most reliable way to confirm its transmission type.
Identifying a TH350 Transmission
Knowing the visual characteristics of a TH350 can be helpful in identification:
- Size and Shape: It's a relatively compact three-speed automatic transmission.
- Case Markings: The transmission case will likely have markings indicating "TH350" or a similar designation.
- Pan: The transmission pan is typically a rectangular shape.
What Years Did GM Use the TH350 Transmission?
The TH350's production run was extensive, starting in the late 1960s and continuing into the early 1980s. However, its prevalence varied over the years and from model to model. Finding a specific year range requires consulting detailed vehicle production information for the make and model you're interested in.
Why Was the TH350 So Popular?
The TH350's enduring popularity stems from several key factors:
- Robust Design: It was known for its durability and could withstand considerable abuse.
- Widely Available Parts: Due to its widespread use, replacement parts are readily available and relatively inexpensive.
- Simplicity: Compared to more modern automatic transmissions, the TH350's design is relatively simple, making it easier to rebuild and maintain.
What Replaced the TH350?
GM eventually phased out the TH350 in favor of more modern automatic transmissions, offering improved fuel economy, performance, and shifting characteristics. The TH200-4R and the 700R4 were among its successors.
This guide provides a general overview. For precise information on whether a specific year and model of a GM vehicle had a TH350, always refer to the vehicle's documentation or a reliable automotive database.
