need some advice , I can not seem to find a good shock for the rear of my 98 2500 , I use it mainly for pulling a light 5th wheel ( not much pin weight ) everything i have installed are way too stiff I have had two different monroe ( monroe matics and sensa track ) shocks and now a new set of gabriel shocks that were advertised make it ride like a car ( never happen )and they are way to stiff , Im looking for something that has good rebound control and yet is softer than what i have installed ?