I have been running my old Belsaw mill with a 1977 (I think) Mustang-II engine and transmission, and now I need to replace the automatic transmission's fluid filter. I don't want to take the old one out until I have a new one on hand, and I understand that this model with the V6 engine may have either a C3 or C4 transmission. Can someone kindly tell me from the attached pics or from any other method which transmission I have. Thank you so much.