My 66 C-30 is getting a 73 C-20 swap. I didn't change the crossmember but the rest of the suspension parts. Control arms, spindles, and steering set up. It all blots up,but if you change the crossmember, there is a bolt hole to drill or 2.

Another site provides this data that may help.
http://67-72chevytrucks.com/vboard/showpost.php?p=4450757&postcount=3

Dave.


Dave.

What's the last thing a red neck says, "Hey guys watch this."
What's the last thing a redneck hears, "Go ahead Bubba, you can do it."

Build plan: 65 Chevy one ton, 5.9L Cummins HO, NV5600 six speed, 2wd 1972-1987 IFS disk front, frame off restore/mod, custom dump/flat bed, Alcoa rims, Dana 70 3.73:1 duals drum rear, plush interior, Guards red with Marine Corps decals. Donor is retired 2002 Ram 2500, 194K miles.