8 3/4 Issues

Thanks, I bought the car 3 years ago when I was 16 and the project didn't really get rolling until quarantine happened, so basically, everything I've done has been my first time doing it and these past months have been filled with trial and error, I'm torn right now between tearing it down again trying again or just taking it to a local driveline shop and making sure it's done correctly.
If you don't have the tools (pinion depth/dial indicator), just have a shop do it. Guy did my Dana 44 for 65 bucks. Money well spent.