Replace shield.

Lack of lubrication.

Clean and lubricate.

Tractor drawbar not installed correctly.

Check dimensions. Install drawbar correctly.

Driveline bent or twisted.

Replace.

Telescoping splines galled or worn.

Replace shaft and tube as necessary. Apply John Deere Polyurea Grease.

Replace worn or damaged parts. Apply John Deere Polyurea Grease.

Driveline bent or twisted.

Replace.

Driveline cross bearings worn.

Replace bearings.

Constant velocity joint worn or damaged.

Replace worn or damaged parts.

Splines on tractor shaft worn.

Replace tractor shaft.

Replace yoke.

Worn pawls.

Replace parts.

DP99999,0000DF4-19-20170810