I recently bought a 1994 Chevy Suburban 3/4 ton 454 4wd. The PO installed the front drive shaft incorrectly, as in only with one bolt, and it came out and is now square instead of round. What I am wondering is if a 1/2 ton front shaft is the same or were they specific to the 3/4. I am not having any luck coming up with a 3/4 shaft anywhere.