Recently purchased a L 4701 with front loader and backhoe with quick hitch. It was delivered on 6/18/18. I have since then removed the backhoe and set up a quick hitch with my woods rotary cutter. Keep in mind only 8.5hrs on machine at this point. On 6/26 I took the machine down the road in 4th high range in 2 wheel drive to mow a lot I recently purchased, the tractor locked up after about 1 mile down the road when I reduced the speed. Nearly threw me off the tractor. Tried restarting it and moving it in 4wheel drive, 2wheel drive and high and low range. I even put the tractor in neutral and would still not move. Dealer picked up the tractor and cutter after notifying them I was on the road,stuck. MY question is should I take this tractor back after such an incident. Under warranty but who knows what damage was done and what problems I would have down the road after warranty. When this happened I noticed grinding noise at both the gear shift area and front axle. I am new to this forum and this is my first Kubota. Any comments or suggestions on my recourse would be appreciated. Right now I am pretty sick about it. Thanks