ok here is whats wrong. i did some very very light wheeling today, one smal hill climb and spun my tires in 4lo trying to get up a slippery slope. well every thing was fine until i get out of school and start driving home when all of a sudden there was a large poping noise. it hapened every time the tire rotated once. it stopped once i got past around 40mph and was terrible under 20 mph. it felt like my brakes were locking up and realeasing or something. im pissed cause im not going to drive it till i know whats wrong with it. also it could be my hubs since they are automatic locking. any help is greatly apprecieated.