Dennis, my stock(ish) 47,000 mile 1951 3600 rides great. Actually rides better than the wife's 2015 2500 Ram with flatbed. Of course we usually run 70 psi front and 75 psi rear in her truck due to her pulling a gooseneck horse trailer a day or two each week.
The deviations from stock on my truck that likely help the great ride are; modern 215/85/16 tires that I run 35 psi front and rear. Also it has a Clark flatbed that weighs more that the stock bed.
If you're still running original type bias ply tires, radials aired up to 1/2 ton pickup no load pressures will defiantly help.
Good Luck, Ron
