[NMuzj100]

Checking the wheel bearings means - listen for a squeal when pulling into and out of the bay or a hard pull to either side that prevents the tech from lining it up on the lift, once on the rack shake the tires to feel for looseness.

Do this yourself and it will take less than 4 hours, you will know the truck better and all the things on the list will actually be done. ( if you make more than $100 an hour after taxes at your regular job then maybe its a good deal to have the dealer do the work)

Driveshaft bushing listed is probably just off the generic service list not 100 specific - just like "Replace limited slip oil - inspect differential oil - Replace rear differential oil" - 20% of that list is double billed.