I took my quad in after suspecting something was wrong with the front end. It would knock when put in 4WD. I suspected it was something in the front dif but the dealer said it is the u-joints. I would think that is a little premature with only 700 miles on the machine. Will have to wait and see if they are going to check the front dif too. The front dif will not lock up as well. Dealer had to order the u-joints and the retaining clips. I will also wait and see if this will be warranty or not.