lscaspall
Junior Member
- Joined
- Nov 26, 2023
- Posts
- 1
- Reaction score
- 1
- Location
- Chicago
- First Name
- Scott
- Truck Year
- 1974
- Truck Model
- K20
- Engine Size
- 350
Hi all, I am restoring my deceased father's 1974 Chevy K20 Cheyenne that he purchased brand new that year. My father was a farmer and the truck went through many modifications over the years, including a swap from the original TH400 transmission to a 700R4. Not sure why didn't just replace the original tranny with another TH400. At any rate, I'm converting the truck back to original specs and discovered that the holes on the transmission crossmember do not line up with the mount holes on the NP203 adapter bracket (#376291). When setting the transmission in place, the adapter holes are about 1 inch rearward of the crossmember mounting holes. It is possible that the transmission crossmember was moved slightly forward when my father swapped the original TH400 for the 700R. I'm hoping someone may have some insight on this and be able to suggest a solution.
