Fastway e2 6D/9R specialty adjustable shank (92-02-4315) is designed to be used with e2 No-shank model hitches (92-00-1033 round-bar, 94-00-1033 trunnion) when the standard shank (92-02-4100) will not reach the necessary rise or drop for proper hitch setup. Fits 2" receivers with standard 5/8" diameter hitch pin. Maximum drop or rise varies depending upon which style (round-bar or trunnion) e2 hitch is being used. With round-bar: maximum drop 8.5", rise 12" .With trunnion: maximum drop 6-1/2", rise 12-1/2" .Cannot be used with the light duty e2 trunnion 4.5K hitch (92-00-0450).