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If I recall a discussion about bearing vs bushing correctly, the main issue identified was that the bearing does not rotate in this application (or only a few degrees) and the same (relatively small) bearing/race contact surface transfers all the energy from the suspension into the frame, all the time, leading to pitting damage and failure. That is why a bushing was identified as a superior piece in this application. The original awkward grease fitting setup may also have played a role. The "modified" setup with the grease zerks in the lids is working very well.
We have engineers and heavy diesel mechanics here and I'd love to hear what they have to say. If it was me, I would likely go the bushing route (my truck has bushings).
We have engineers and heavy diesel mechanics here and I'd love to hear what they have to say. If it was me, I would likely go the bushing route (my truck has bushings).