Would the under bellhousing crossmember from a 67-72 C60 or a 73 and newer C60 interchange with a 64 C60? For reference my 64 bellhousing casting number is 3779388 and has the large 197 tooth flywheel with 13 inch clutch. I note this as I have seen other 60-66 C60 trucks with a smaller bellhousing, flywheel and clutch incase this makes a difference in the crossmember.

I will need a replacement crossmember for a 64 C60 but the yards I know of only have the 67 and newer C60’s

I appreciate any help on this.