This is a A-EC0NN577AB Universal Economy Leveling Assembly PN: EC0NN577ABMain Description As Following : A-EC0NN577AB Universal Economy Leveling Assembly P.N: EC0NN577AB Adjustable: 17.750" min / 25.500" maxLength: 19.250"Pin Hole: .625" Replaces: 49A152 MISCELLANEOUS , Crossed From: LB152 , Found in Section & Models : Hitch & Drawbar Parts > Hitches: 2PT and 3PT, Ford / New Holland (UNDEFINED): SEVERAL, Ford / New Holland TRACTOR: NAA, Ford / New Holland TRACTOR: 2N, Ford / New Holland TRACTOR: 600, Ford / New Holland TRACTOR: 600 SERIES, Ford / New Holland TRACTOR: 800 SERIES, Hitch & Drawbar Parts > Side Links, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also A-FO-O-16-46COMB, A-FO-P-FERGIMP, A-FO-S-CONSUMPR, 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 And : Note: Yoke openings 1"and 2" Adjustable: 17.750" min / 25.500" max Length: 19.250" Pin Hole: .760" Thread Size: 7/8" - 14 UNF