It has the trailering package and hauls a racecarr around no problem

So your glovebox has the Z85 code or the Z71 code?

My 94 Gmc can haul a ton in the bed and not squat any. I also haul a ten foot dump trailer with it. Never squats. I added 3 springs to each side and turned the torsian bars all the up. To hold the weight of the 8 and a half foot plow. Only time truck dosent sit level is with the plow on. Only drops about 2 inches.