Trans.

[olemans85]

I have a 85 C10 silverado with a 305 & 3sp. auto trans. I think the trans is a
TH350C. The pan is a TH350 pattern. Does this sound right?

 

[marks86]

yes you only have three choices a four speed manuel, a 700r4(check and see if you have a overdrive gear on your dashboard) or a th350

there is a possibly some c10 came with th400 like a heavy duty option but I could be wrong

but if your sure its a three speed I would have to assume its a th350

Check the glove box for the RPO code?

 

[Driver4r]

Yes, its a th350c

 

[olemans85]

The Service Parts ID reads- MX1 3sp auto.

Thanks, getting some parts ordered.

 

[89Suburban]

Here are the list of RPO codes Retro posted in the library for that year:

http://www.gmsquarebody.com/forum/showpost.php?p=116651&postcount=14