-20 series tractor steering shaft coupler with PS

[bill_396]

On my 2420D with power steering the flex-joint/spline shaft coupler just above the steering gear box is used up. It has 3 ball that run in grooves in the housing, the balls are rusted small and the lengthwise grooves in the housing are worn into a track all the way around allowing the steering wheel to just spin. Is this part available and if so from where? Info on the -20 series tractors power stering system is hard to come by. To keep me going I shimmed the balls and raised the point that they contact the housing to get better contact but next time it breaks I really will be done and would like to have the part by then. thanks.