My Suburban with stock suspension and stock 248 six will drive 70 mph all day long. The tranny has been changed to an SM319 OD. I have power brakes with discs on front. I have taken several 1000-2000 mile trips in it. You don't have to have a modern frame and a V8 engine to make a driver out of an old truck.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.