Are you ready for my idea?
Take a pushrod or straight edge an mount it catty-cornered across the cap area.
It would be underneath the cap on one side of the carrier and the other would be underneath the cap on the other side of carrier so that the straight edge is above the back of the pinion.
Then take a caliper and measure from the back of the pinion to the bottom side of the pushrod or flat Edge.
Then you would add Shims in order to bring it up to that number that is scribed in the back of the pinion.
This is how aftermarket gears are set up. OEM not so much.
Anyway it won't hurt to try it.
