TH400 Cyphering Help, please.

[KCJim]

Besides the pan shape and bolt count these are the only numbers I can find. These are above my pay-grade, and I've read Nicks stuff and have DDG fatique. Any help is appreciated.

 

[dragstews]

The ID tag information breaks down as follows:

• 87: Indicates the model year of the transmission is 1987.
• FKA: This is the GM assembly plant and application code. While the generic code "FMA" was used for GM vans, "FKA" specifically denotes the original vehicle and engine combination this transmission was intended for. Finding the specific application for "FKA" usually requires access to a detailed GM dealer service manual or parts catalog for that year.
• 17310: This is the sequential production unit number or Julian date code combined with the sequence number for that specific transmission build.

In 1987, the TH400 was officially renamed the 3L80, and an extra-heavy-duty version, the 3L80HD, was introduced for use in passenger trucks and commercial vehicles. This transmission is widely known for its exceptional durability and was used across a variety of heavy-duty GM applications, as well as in vehicles from other manufacturers like Jeep and Rolls-Royce.