PTO Screw-Lock Spline Adaptor / Extension , 1-3/4" x 20 Spline Female End, 1-3/8" x 21 Spline Male End
Brand New PTO spline adaptor, 1-3/8 x 21 male x 1-3/4 x 20 Female.
This unit is attached to the PTO out put of the tractor. It extends the PTO shaft by approx. 3-5/16"