Yes, I have them too, and I agree, they’re only to keep it clean. I think at some point we’ll go to solid oiler bolts. The only grease that matters I think is in the spindle, so that’s why you get the spiral grooved bushings. I also did the Fred Sisson trick of using an O-ring held in by a small slice of old bushing. Regular greasing the spindle should take care of any part of the kingpin that’s sliding through the spindles.
