Kenneth's advice on using 3.90 or 4.11 gears is right on. I'm using the 3.90s and that makes a 2.73 final drive. It's slows the 248 down on hills at highway speed. I don't think it could handle any higher ratio.


"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.