So the nos bushing I found on eBay meet those dimensions exactly, 1.68 and 1.72. However,while I have not removed the existing bushings, it looks like the id of the torque tube is around 1.501 to 1.502. I can't imagine I will get the bushings pressed into the tube with this much of an interference. Is it normal to machine the bearings to fit the tube dimensions??? I thought I read the early bushings were a slip fit with a staked pin.