Bennche Bighorn 400 Owner's Manual page 156

S/N Problems
Front drive shaft makes
7
noise during use.
Periodic Maintenance and Adjustment
1. Check if the drive shaft spline is broken.
2. Check if the splines in left & right axles and front & rear drive
shafts are broken.
3. Check if the gears in rear drive shaft and reduction gear box
differential are worn.
4. Check the dust covers of universal joints in right & left drive
shafts are damaged.
Solutions
8-56