Here are some pictures of my lathe feed gearbox. You can see I replaced the steel bushings with bearing bronze bushings. It is very smothe after alot of deburing of the gears and modified lockscrews. Also here is a picture of the Thomson ball screw I am going to use for my Z axis and I will still be able to use the power feed and hand feed unlike the Shoptask Z axis ball screw which is strictly for cnc and you are unable to use the hand or power feed. If you going to do somethig then do it right the first time. Nothing I hate more is something just slop together. The drive gear for the Lathe feed gearbox the hole is to big and will have to be repaired.