So is the 650 xmr diff the same as the 800 and 1000 diff, or is it the same as the regular 650 outlander diff, and Iv heard about diff problems and shim problems and the diffs having play inside right from factory,, I seen this on mechmike youtube video, is this something I should be concerned about, and just to clarify my 650xmr is a 2015,, thnx