Travel Noise

[uffda]

My Bobcat 743 makes a gravelly, scraping sound when driving down the road. Parking brake is off. Its not the best description but it can't be normal. Any ideas??

 

[brdgbldr]

First thought is axle bearings gone bad.

You can put the machine on stands and see how much play each axle has. It should be very little to none.