I'm working on doing a disc brake conversion on my rear sami axle, and was wondering who has done this and where did you get the drums machined down at for the adapters. I don't want to spend the money on the spidertrax adapters, so if anyone has had their drums machined down, where did you get it done? Also if anyone local has a lathe and could do this for me, how much would you charge? Drum needs to be machined down to a disc to fit into stock sami rotor.