This is a A-8N577A Leveling Box Assembly w/ Fork (RH) PN: 8N577AMain Description As Following : A-8N577A Leveling Box Assembly w/ Fork (RH) P.N: 8N577A Adjustment is 18" to 21" center hole to center hole. Replaces: NCA5779N FORD , A-182642M1 MASSEY FERGUSON , 182642M94 VAPORMATIC , 47A2 FORD , A-47A3 MASSEY FERGUSON , Crossed From: AM8N577A , , WN-8N577A , , WN8N577A , , 1113-0507 , , 113624 , , 1213-0002 , Found in Section & Models : Hitch & Drawbar Parts > Hitches: 2PT and 3PT, Ford / New Holland TRACTOR: NAA, Ford / New Holland TRACTOR: 2N, Ford / New Holland TRACTOR: 8N, Ford / New Holland TRACTOR: 9N, Massey Ferguson INDUSTRIAL/CONSTRUCTION: 20, Massey Ferguson TRACTOR: 35X, Massey Ferguson TRACTOR: 35X(FE), Hitch & Drawbar Parts > Side Links, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also A-FO-O-NAA, A-FO-P-ACCESS, A-FO-P-SHERPS, A-FO-P-1400SHER, A-FO-S-NAA, A-FO-S-SHER-TRAN, A-SMFO19, A-DA-O-101LDR, A-FO-O-9N, A-FO-OP-SH54C900, A-FO-P-ACCESS, A-FO-P-2N8N9N, A-FO-S-SHER-TRAN, A-FO-S-2N8N9N, A-FO-SOP-SHER54A, A-FRM-FOMM, A-MH-S-TETOSB, A-SMFO4, A-FO-O-8N, A-FO-P-ACCESS And : Adjustment is 18" to 21" center hole to center hole.