Ok, so I'm looking into the next big investment for my Jeep. I used to wheel frequently and I'm trying to get back at it. I currently run 35s on the stock 2012 jks axels. (Front Ujoints were buffed up). Also, stock driveshafts and gears. I would like to run a locker. From the research I've done, the selectable ARB locker is looking like it would be perfect. Is that the best bang for the buck locker and will my set up handle it, or should I work on upgrading axels and driveshafts first?