I have a 1951 1 ton chevy with 216 engine, original 4 speed tranny and 5.13 rear axel ratio. I have axcess to what is discribed as a 1972 chevy 3/4 ton rear pumpkin with a 3.54 ratio. Will this bolt into my existing differential? I do not haul loads with this truck and would love to drive a bit faster than the current 45 MPH. I must add that for rear tires, I am running 255/85R16 tires. Thus equiped, will this ratio be Too LOW? Thanks for any input, Jerry
