228 used large Delrin bushings for both the lower and upper supports on our 4WD independently steered GUSwerve this year.
Since each pod was steered by a single Denso motor, we had some initial issues with them overheating. Once we correctly shimmed the Delrin plates using .010" Delrin shims and set the Jaguars to coast instead of brake, we haven't really had any issues with the motors overheating.
