A/T - 125C Oil Feed Modification
TSB 85-8SUBJECT: 125C
When rebuilding a late 1984 or 1985 THM 125C transmission you may notice a notch or apparent damaged area on the channel plate as shown. This is not a damaged area, it is an added lube slot that feeds drive oil in a fine spray onto the chain to help lubricate it. When rebuilding the unit do not attempt to fill or remove this "V" shaped notch.