I have an hd10 xt max broke the stock axles, broke allballs broke the slashers lol...I highly recommend titan axles haven't broken them yet. https://s3powersports.com/titan-can-am-defender-axles/
When you took the belt off did the secondary clutch move freely and smooth. Because the rollers in the secondary tend to brake. I know this cause I have a 17 hd10 xt max mine got real jumpy. Pulled the secondary apart found that both rollers were half gone.