Properly done your existing suspension will easily handle that kind of speed and should manage much more. Its the axle ratio and splash oiling that will limit your speed, and brakes that will limit safety, long before that straight axle design is a problem.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...