A.D. trucks are not road racers, and the need for a sway bar is very limited. The stock front bar on my '54 GMC came from a 55 suburban and was a bolt on. It made a bit of difference, but not much. Leaf spring suspensions are not as susceptible to body lean as independents. My truck apparently had a camper on it and P.O. had put a Panhard bar on, all it did was to make it ride rougher, I removed it and all's well.
