[Imperial Kustom]

In my reading of 60-66 trucks, I came across an article explaining the rear trailing arm and coil spring suspension on the Chevrolets. According to the article, during a late '50's (I can't remember the exact year) NASCAR design season, Chevrolet introduced a trailing arm and coil spring rear suspension for the racecars. The same setup used in all NASCAR vehicles today. Then, unlike now, NASCAR rules stated that the cars be built of parts installed on production vehicles. This proposed suspension was not currently scheduled for production so it was incorporated into the Chevrolet line of pickups for the 1960 model year.