Was away over easter and had some strange noises come from the front end. The first time I'm pretty sure was just dirty brakes. There was squealing but it slowly got better and after i pulled the wheel off and gave the brakes a good clean it stopped completely. Its the second time it squealed that concerns me. I was in 4wd and had been driving in sand and gone through a couple of small washouts with a bit of muddy water in them then while going up a small sand hill there it started squealing quite badly. I stopped and took it out of 4wd but left hubs locked and the noise stopped. I continued in 2wd for a while then put it back in 4wd and the noise was gone. If anyone has got any ideas on what this might be that would be very helpful.