Remove the O-ring(A) from the pinion shaft and case assembly.
Remove the spacer(A).
Loosen the HEX lock nut(A).
Remove the rear flange assembly(A).
Using the SST(09455-32200), remove the oil seal(A) from the pinion case.
Using a press machine, remove the pinion shaft(A) from the pinion case(B).
Take out the taper roller bearing(A) from the pinion case(B).
Using a sliding hammer(A), remove the taper roller bearing outer race(B) from the pinion case(C).