9-1/4 rear end problem

My 9-1/4's pinion seal gave out and made a big racket. Painted my underside very well with gear oil.

I also have a Mancini racing set of 3.55's with the also included;

(Big and small) Pinion bearings and races, ring gear bolts, seal, crush sleve.

Question(s) are,;

Whats the OE spline count on the pinion. The pinion I have has many splines. I shake at the thopught of getting a newyoke on the pinion, but I do not think that will be the case. I just don't know how many splines are OE in '78, the year of the rear.

Does anybody have an exploded view of this rear?

Will the entire assemble need to come apart just for the bearing and seal
should I decided to skip the ring and pinion. (No, I don't want to skip it. Money IS an issue.)

Has anybody also had/have/used this kit?

What might I be missing?

Thanks crew.

(I don't ask alot, but when I do, I'll load ya up some.)