Thanks everyone for the good advise. J B welded the ring gear on as welding could not be performed in the warehouse. Once that was done still had a G3 fault. Tested the sensor and found no signal from the sensor when light on. Sourced a sensor from local suppler and installed same. (Raymond has this component on Back order) Unit now works. Steer current is about 12-20 amps on the floor and stationary, once the stops are engaged current runs up to 80 amps for maybe 3 seconds then drops out to 0 (while still steering). Unit has about 9000 hours, greased every 200 hours since new and has about.080". Have not yet checked the radial wear.