Parts list: № Number Qty Name Options 1 PF90849 1 Steering System Next page: ST751081 AutoTrac™ Tractor Kit, Electro-Hydraulic Proportional Valve, 8100, 8200, 8300, 8400 ST73132 AutoTrac™ Tractor Kit, Steering Control Valve Return Line to Tractor Brake, 6320, 6420 ST73223 AutoTrac™ Tractor Kit, Electro Hydraulic Steering Valve, 8000 Series ST73135 AutoTrac™ Tractor Kit, Potentiometer, 6320, 6420 ST73224 AutoTrac™ Tractor Kit, Steering Valve Seal Kit, 8100, 8200, 8300, 8400 ST901970 Attachment, AutoTrac™ Steering Control Unit / Oil Lines, 6155M, FT4 ST821862 AutoTrac™ Tractor Kit, King Pin, 6R FT4, MX 25-45, 6110R, 6120R, 6130R ST73184 AutoTrac™ Tractor Kit, Resume Switch, 630, 7730, 7830, 7930 ST73166 AutoTrac™ Tractor Kit, Steering Control Valve to Tractor Brake W/ Suspended Front Axle, 7220, 7320, 7420, 7520 ST741334 Attachment, AutoTrac™ Tractor Kit, 9X00 Wheel W/ Manual Shift Transmission (PIN 040000-), 9X20 Wheel W/ Power Shift Transmission (PIN -001703) or 9X20 Wheel W/ Steel Gudgeon (PIN -010443)