They completely destroyed my husbands rear differential gears by not putting the plug in correctly (or maybe they didn't put it back in at all). It is going to cost anywhere from $500-$1000 to repair. When my husband called to inform them of the problem and see what they would do to rectify the situation, they informed him he "couldn't prove anything" and gave him a major 'catch us if you can' attitude. Stay far away from this place!!!