I think i've found the truck i wanted, everything looks great and should be going to see it this weekend, lots of service records, 2 owners and ~100k miles with it being a 2013 model.

My questions are on a couple of things i spotted in the service reports, i wondered if anyone with experience can expand on them at all.

1) It had a thrust alignment at ~63k miles - i don't know much about these, but i'm wondering why it would need one?

2) it had pinion seals replaced at ~35k miles and again at 78k, with the latter being the second owner - how often do these go? again, is this possibly considered normal?