I will also pipe in here. I have extensive background in building gen 1 Rams with the intent of towing trailers. If you want a REALLY good shock for making the truck ride like it is on rails, consider a Bilstein 5100.

I have run Monroe, Napa, Mopar, etc and for ensuring the truck handles with very little body lean, I have found good results with these shocks. Normally about $120 per, for sure more expensive. But, it depends what demands you need your truck to do. As poorboy said, you pay $600 for tires.... ever consider what a really good shock can do?

Again, changes if you never have a load in it or behind it.... but if you actually work a truck (My 1990 W250 has peaked weight at 29,000 gross truck and trailer), then you may need a step up.

My 10c.