Just to throw my 2 cents in.
First time I changed my oil I discovered two of the skid plate bolts missing. Went to the autoparts store to get new ones, discovered the thread is metric but hex (on old ones) is SAE. What's up with that?
Swapped two on another part of the truck so I wouldn't need two different size sockets to remove the skid plates.
What a goofy thing.
