| There is a rubber bumper there, not a bag, unless someone has added an Air Spring kit. If you’re running empty, there’s no way the rubber bumper is striking the axle on uneven terrain, much less on the highway. Even if you had 1k lbs in the back, the bumper wouldn’t be striking the axle. Any recoil you’re feeling is from the stiff springs.
Maybe you could post a picture of what you have.
__________________  2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN, Ride-Rite Air...  2006 Chev 6.0L/4L80e 3500WT DRW Ex-Cab, 9 'Flat/GN, Ride-Rite Air Springs, A/T Revos. Use-ta Haves  2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab "Did you ever think that making a speech on economics is a lot like pissing down your leg? It seems hot to you, but it never does to anyone else. " -Lyndon B.Johnson  100th |