TwistedPhil
+1y
Your 67 uses a kingpin front suspension, so the disc brakes and control arms from a newer model won't just bolt up- you'll have to cut the whole suspension off the donor truck to swap it.
As for the motor/ tranny swap, all of the mounts are different from the pushrod 1300 to the L series motor. You can cut the mounts off the donor truck and weld them to yours, or you can just swap your 67 body over to the newer frame and save all that trouble! Some of the body mounts will be different, but widths are mostly the same, so this may be the easier way to go... good luck!
-Phil at FBI