Took my 2017 Wrangler to a garage in Mussafah for a rear differential service because it was humming at highway speeds, and they charged me nearly 2,000 dirhams for a fluid change and some "adjustment." Two weeks later the noise is not only back but actually louder, and now there's a metallic grinding sound when I turn corners. I'm pretty sure they didn't set the gear backlash correctly or maybe reused a damaged bearing. I really don't want to go back to the same place and get the runaround again. I've been searching online and came across a mention of an Expert Jeep Differential Fix Abu Dhabi and I'm hoping someone here can recommend a shop that actually rebuilds diffs properly – you know, checks the carrier bearings, pinion depth, and uses a dial indicator instead of just guessing. Also, how much should a proper rebuild cost on a D44 rear end? I'd rather pay once and have it done right than keep throwing money at band-aids. If you've had a good experience with a diff specialist around Abu Dhabi, please let me know. Thanks.