I spoiled my chances on winning a slowest truck race when I changed my 1954 Suburban's Ring&Pinion gears to 3.55 (from 3.90). The next best "standard" equipment 1/2 ton truck combination would have been the SM420 in an earlier 4.11 R&P.
It had been almost unbeatable with its SM420 transmission and the very slow/smooth idling engine. It moved slower than Grannie.
