So a few months back I started hearing this awful grinding noise from the rear of my Patrol whenever I made tight turns, especially in parking lots or when maneuvering slowly. It got progressively worse over time and I knew I couldn't keep ignoring it because eventually it was going to leave me stranded somewhere. I took it to a few places for quotes and some of them were absolutely insane, like they wanted to replace the entire differential assembly which would have cost me more than half the value of the car. One place even told me I should just sell the car and buy something newer, which was super helpful of them. I eventually found a specialist who actually knew what they were talking about and they explained that the problem was with the limited slip clutches and spider gears, and that a rebuild with new bearings and seals would solve it without needing to replace the whole unit. They quoted me a fair price and I decided to go ahead with it even though I was pretty nervous about the whole process because I'd never had that kind of work done before. I ended up taking it to a shop that I found through https://800sayara.com/car-differential-repair/ and honestly the whole experience was surprisingly smooth, they kept me updated throughout the process and explained exactly what they were doing. The car drives like a completely different vehicle now, no more grinding, no more whining, just smooth quiet operation and I've even noticed my fuel economy improved a bit because everything is properly aligned and free of resistance. If you're hearing weird noises from the rear end, seriously don't ignore it because it only gets more expensive the longer you put it off, get it checked out by someone who knows what they're doing before it turns into a much bigger problem.