Hello, I was just going through my R-390A stuff looking for some pin straighteners to satisfy someone's post and realised how much "stuff" I have. If you are in need of any rack handles, oldham couplers, gears, clamps, screws, etc., please e-mail me as I may be able to help. For gears, you need to give me a number based on the diagram in the manual for a positive identification. thanks, Phil