Checks  | Cause  | 
|---|---|
Bushing (234)  | Worn or damaged  | 
Thrust Washer (218)  | Worn or damaged  | 
Rear Gear set  | Spalled or broken  | 
Reaction Drum and Carrier (651)  | Broken  | 
Mainshaft (662)  | The shaft or the splines are broken.  | 
Output Shaft (671)  | The shaft or the splines are broken.  | 
Sun Gear Shaft (649)  | The shaft or the splines are broken.  |