basically what the perfex kit does is move the shock mounts making the shocks more straight up rather than at an angle thus making it easier to compress the shock and spring. I don't have one yet but from what I understand it raises the bike maybe 3/4". It shouldn't have much effect on the u-joint. I know of several poeple thats run them for a while.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Honda Foreman Forums
Honda Foreman Forums: Discuss the latest Honda Foreman in our free Honda Foreman forums. Also talk about Honda's other ATV and UTV's including the Honda Rubicon, Honda Rincon, Honda Rancher and Honda Recon