The New Suzuki Quadracer HQ Welcomes All LT500 Quadzilla, LT250, LTR450, LTZ400, LTZ250, LT80 owners to the Suzuki Quadracer HQ forums
Atvbushings.com sells urethane bushings with steel sleeves. That's what I'm running they are supposed to have a much longer life than bearings. Good price for the entire kit also.
http://www.suzukiquadracerhq.com/index.php?action=store