I have a Ransomes ZT100 mower that has a shaft drive for the blades. The shaft goes to a right angle gearbox. One of the bearings went inside the gearbox. There was no oil in the gearbox for at least 100 hours. A new replacement gearbox is roughly $500-$600 and I think one for a Walker mower is roughly $200. I was wondering if anyone has any opinions on how to go about fixing this. I can get the bearings off, but will new bearings need to be press fit on? Should I just buy a Walker one and fab up a new bracket to hold it in place? Should I see if some where in town someone can pull and put new bearings on. Any input would be great, thanks.