Looks normal to me. Driverside bolt is always deeper than the passenger side bolt. And the bolt pictured isn't all the way out....it's only half way out or so. The bolt is about 3.5" in length.
Haha. I have wondered about this too. I have tried to level my truck by counting the threads on the bolts. Believe me, it doesnt work. lol Why are they like that Shane? More weight on that side of the truck?