I have a 2016 mach 429 trail with play in the rear bottom shock mount, even after I bought new bushing kit. It was good for about 4 rides now has play again : https://www.fanatikbike.com/products/fox-racing-shox-rear-shock-mounting-hardware?variant=8297710787
pivot says what I bought is the correct size kit (8X21.84), wondering if I need one of these in different size, like : https://www.fanatikbike.com/products/fox-rear-shock-polyurethane-du-bushings-pair?variant=8041666019374
I was going through bushings like crazy. I installed the Enduroforkseals rear shock bearing kit and it seems to have solved the longevity issue. HOWEVER, I just 2 days ago broke the lower shock bolt AGAIN. Check that bolt. I know it's a pain in the ass to check as you have to undo the rear triangle but mine has loosened and broke over the years.