Freightliner rear spring wear pads

I didn’t even know these things existed, thought they were part of hanger. I watched while they changed my bushings. Probably should have changed them out. With all that work you’re doing to line it up I’d say definitely put new one on. IMO Im not a certified mechanic. Just a parts Changer.

 

Those pads won’t have any affect when the bushings are new. And replacing them now won’t make a difference as long as you drive straight down the road, no turning, not ever!!!
But seriously,
I work on a fleet of these that run off road. If nothing else put a coat of paint on them so you can see when the spring makes contact with them. The paint is an easy indicator that the rubber has broken away from the pivot pin enough and the bushings need replaced.
Those plates main concern is to keep the spring from rubbing the hanger. As long as that job is taken care of they are fine! If they are the only reason the spring isn’t rubbing on the hanger then the bushings need replaced.