184 (using #527457R11 connecting rod)
LA (SN 4600028 and up)
Fits: 1022558M91 Massey Ferguson Tractor 97
The parts manual can help you out with an exploded view of the PTO unit
Works on 6 volt and 12 volt tractors
290421 Front Hydraulic Pump Drive Hub Adapter-Fits Ford Tractor NAA 600 800 Case 184 (using #527457R11 connecting rod)Quality Aftermarket: Front Hydraulic Pump Drive Hub Adapter Fits: 290421, 500934 Ford Tractor NAA 1952 53, Jubilee 1953 54, 600 1954 57, (601, 611, 621, 631, 641, 651, 661, 671, 681, 801, 811, 821, 841, 851, 861, 871, 881, 2031, 2131, 4031, 4120, 4121, 2000 4 cyl., Fits 1962 64); 4000 4 cyl. Fits 1953 64; All Fits with loaders # 701, 702, 703, 723, 724 & 725 w drive kits # 19 120, 19 122 Specifications 1" spline inside diameter 10 splines 2 3 4"