Guys--Ron's Machining Service is the best out there. I haven't purchased parts from him, but I have ordered gears and TrueTracs from him in the past for other members here and I can't say enough good things about his business. I had to call one time to ask a few questions and he answered the phone himself and was very helpful. I really don't see a reason why you need to order your gears/lockers/master install kits/etc from anywhere else.