I have a 07 classic Silverado with a 5" pro comp lift....at least I am pretty sure that's what it is. Bought the truck used from a dealership with the lift. I need to replace the rear shocks. I do alot of towing so would like something more geared towards that. Leaning towards Monroe but not sure if 34690 is the correct model. Looking for some help with what will and won't fit. Or a site that easily lays it out there for what shocks fit how much lift.