This Mor/Ryde Leaf Spring Equalizer system provides more than 3 Inch of suspension travel to add protection from road shock, improve towing capability, and gives you a better ride. Specifications•Compatibility: Leaf Equalizer•Type: Rubber Compressed Spring Type Arm•Suspension Travel (IN):Up To 3 Inch•Axle Type: Dual Axle•Axle Load Capacity (LB):3500 To 7000 Pound•Wheel Base (IN):35 Inch•Installation Type: Bolt-On•With Crossmember: No Reduced Stress On RV Frame Up To 3 Inch Of Suspension Travel Tested, Rated For Up To 8, 000 Pound Axles | MORryde Mor/Ryde Leaf Spring Equalizer, 35" Wheelbase