Hi Navigator if you have the same king pin on your 5th wheel as I do Google Reese VHD-10K22SW Operating Instructions you should see a site listed as PDF Operating Instruction at forestriverforum.com
. It's the manual for the sidewinder on my 2014 Rockwood 8280ws. It will show a break down picture with all parts listed. According to tech support at Cequent (Reese) there should be no wear to wear plate, wear disc or pivot bushings. The wear plate and disc on mine were grooved and embedded with what appeared to be metal chips. The pivot bushing was also grooved from the hardened grease from shaft. The Phone # at Cequent is 1-888-521-0510. I called them on 8/31/16 and parts arrived on 9/2/16. Have fun disassembling hitch it's heavy. I used my truck tailgate, blocks and the trailers front landing gears. Once I got hitch to rotate a little I kept loosening large castle nut a little bit at a time and kept moving hitch back and forth until hitch came off and rested on blocks. When re-assembled castle nut needs to be torqued to 80 ftlb then tightened to nearest through hole for cotter pin.