I searched the archives for 2 days & CAN'T answer this question with any certainty.....
Is there any difference between an early '71-'73 front crossmember & a '74-UP crossmember?
If all the holes are in the same places on both crossmembers then all the '74-UP suspension parts should just bolt on but NOBODY seems to know for sure.
SOMEONE HAD TO TRY THIS BEFORE......