PMD Products 5th Wheel RV Landing Jack RBW Atwood Shaft Bushings Oilite Set of 2 Bushings are 1/2" I.D, 5/8" O.D , Flange O.D. 7/8" Flange thickness is 1/8" and the length is 1/2" Fits RBW and Atwood RV 5Th Wheel and Gooseneck Jacks Oilite impregnated for superior lubrications and longevity Replace the one plastic bushing with these bronze ghears 2 per bag