On my simple and quick mission to Upgrade this 1972 Doidge D100 from field truck to Race truck, I address the rear suspension. I will mention HERE that the better way of doing leaf spring suspension is to call Calvert Racing and Spend accordingly.
I am providing you with a known version of Rear Truck suspension that is 1/4 the price of Caltracs and lets you still run around on the street without any negative penalty on suspension or handling.
Thanks to @talljohnsfunshop2722 for letting me borrow the 4.10 sure grip in this one, @rickseeman5679 for his help on the [project to expedite the process, and to @318willrun for keeping the drag truck alive.
Others like @UnityMotorSportsGarage better wath out for this old crispy Mopar to pass them at the finish line!