Outer Limits 4x4 Board

just bought a pk ranger 4x4 cab chassis for work as im a tradie.with about 400-600kg in the back, the rear leafs were bending the wrong way, and the ride was killing my back.i put dobinson 400kg constant load springs in and left the standard shocks in for the time being.well now it drives like it should -excellent.the bench seat doesn't help ,but its very tolerable now.
my old ute was a hilux with full suspension upgrade and aftermarket drivers seat.funny how you take your ride for granted until you change to another car.