CURT 17303 Replacement Long Trunnion Weight Distribution Hitch Spring Bar, 30 5 8 Inches, Up to 10,000 lbs. Hitches not just a slider Provides plastic not just a slider Provides 12" of travel while most competitive models only offer 10" Uses wheels to bear the weight Fits select Chevy GMC long bed trucks with puck system (year range specific) Cast yoke with poly torsion inserts to suppress shock loads and reduce noise Fully articulating torsion head for controlled coupling and stable towing Lockable handle self resets to the ready to couple position after uncoupling Constructed with a cast steel main body for a more precise build High strength It offers a gross trailer weight capacity of 8 This replacement spring bar is designed to fit the CURT long trunnion bar weight distribution hitch #17302