1984 3 speed transmission

[Selo]

Gentlemen,

I have a 3 on the tree 1984 C10 with the original 250 inline 6. I bought it used in 1985. This truck is as basic as it gets. The only option installed was a step bumper.
The original 3 speed was replaced with what I think is an earlier model 3 speed (long story).
The current 3 speed is in need of a rebuild, but I'd rather rebuild and install the original transmission model. I am having difficulty determining the model 3 speed that would have been installed at the factory. I can't start looking for one until I know exactly what I'm looking for.
Any help will be appreciated.

 

[Ricko1966]

Gentlemen,

I have a 3 on the tree 1984 C10 with the original 250 inline 6. I bought it used in 1985. This truck is as basic as it gets. The only option installed was a step bumper.
The original 3 speed was replaced with what I think is an earlier model 3 speed (long story).
The current 3 speed is in need of a rebuild, but I'd rather rebuild and install the original transmission model. I am having difficulty determining the model 3 speed that would have been installed at the factory. I can't start looking for one until I know exactly what I'm looking for.
Any help will be appreciated.

Should be a sticker on the glove box door that gives the RPO code for the transmission the truck was built with. Post it someone will tell you what transmission you need.

 

[Keith Seymore]

Three on the tree = Saginaw Transmission

There were a couple different ones available based on first gear ratio.

www.gm.com/content/dam/company/no_search/heritage-archive-docs/vehicle-information-kits/chevrolet-trucks/1984-Chevrolet-Truck.pdf[/URL]

Option codes were M62 or M64.

K

 

[Selo]

Gentleman, thank you for taking the time to respond with helpful info. Selo