TH-350 vs. TH-350C filters:

[fussfeld]

Is the trans filter for a TH-350C different from a regular TH-350?

i thought the 350C has a notch cut out of it vs. a regular 350 which is square.

However, the AC Delco site lists the same filter as compatible with both transmissionses.

i don't want to drop the pan unless i'm sure i have the right filter. i have a 350C

 

[1987 GMC Jimmy]

It looks different to me. I checked the part numbers on RockAuto between a pre-lockup model and a later model. They had different numbers and specified whether for a C-model trans or not. I would just go on there and get the one for a C. I don't know a ton about the three speeds, but that's my two cents.