Thrust Block with 489 Sure Grip

Also look and see which style green bearings you have there are two different ones RP 400 ( crimped onto the bearings ) and MO 400. ( snap ring style ) I am almost positive since I went out and checked my 8 3/4 that you are good to go with the MO 400 style bearings. ( they move the axles out slightly where the RP 400 moved the axles in slightly. )

I have snap rings on one side of the bearing and a slot on the other side for what looks like an o-ring that did not come with the set, I'll have to find a couple of those I suppose