i have been using Mebar in Dubai (Al Quoz). They are good, but do not have a huge amount of experience with Raptors. I bought my truck from SDHQ in Arizona, and had it shipped out. I know that they have done some work with Motortech. I was there a couple of weeks ago. I have been to Al Tayer a few times. They are utterly, utterly useless. But I'm impressed they have honoured your warranty. Next step for me is to replace the diff with an open differential- I can't go in the desert as the truck currently is, and i keep destroying IWEs. The SDHQ guys suggested that the transfer case may be the problem also- that is next if the new differential doesn't help.