With a TON of help from
@hosejockey61 I was able to almost successfully finish my first regear today.
The project was swapping my truetrac from my current LP30 to my new HP30 out of a 96 XJ. I was installing some 4.88’s to match the rear axle.
After realizing I was adding shims to the wrong spot on the pinion and adjusting the preload instead of the depth, I got the depth figured out with dumb luck that the pinion head shim from the original XJ gears worked almost perfectly with my new 4.88 gears.
Then with some more luck I only had to make adjustment to each carrier side shim once before I had good preload on the carrier bearings and had a pretty good pattern. That being said it’s not perfect as my backlash is right at 5-5.5 thou. Tomorrow I’ll tackle adjusting the carrier shims till I get it dialed in just right.
Overall was an awesome day of learning tons and tackling one of the most intimidating installs. Glad I’ve done it once as now when I do it next time it’ll be much easier.
The first two pics are of the pattern before I got the pinion depth set right and the last two are as it currently sits.