Yes. the spindle bushings. On net search I see in two articles that say 89 and up only on the roller bearings. Like you are suggesting, I thought that the spindles 89-early 09's were the same for the 86-88's. But doesn't installing the bearing require a press? ...so spindle would need to come off? I have never removed the half-shafts on this truck and I need to change out the lower ball joints anyway... do you think it would be easier to pull the spindle off and not have to remove the axle?