Should be in the Sacto/Stockton area. Capable of setting up ARB, etc. Not looking for the cheapest, looking for the most capable, honest shop that will stand behind their work.
I have heard good things about the Rear End Shop in Riverbank. That's probably where I will be taking my rear axle to get geared after speaking to a few people I know. Have been doing business for a long time from what I've heard.
I went to Modesto Differential. The guys were hella cool and there were three other lifted Jeeps there getting gears done when they did mine. They had no questions about the E-locker even though they aren't very popular. And most importantly they are as quiet as stock.
I checked The Rear End Shop in Riverbank and they guys there didn't impress me at all. But you don't necessarly need customer service skills to set up gears either.