I have driven several of my trucks without shocks, 1.5 or 2 ton springs up to 45 or 50 mph shocks don't seem to make much difference. Much faster and shocks make a noticeable difference, at least in the front.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-