LOL, too much oil will make the seals leak and also can interfere with the crankshaft rotating parts. The rotating parts can beat the oil to a foam and cause aeration of the oil (air bubbles).
This in turn can cause the oil to be too thin and not lubricate properly
If you havent driven the truck on the road, you will most likely have done no harm.
I always look at the oil on the dipstick with the engine running to see if there is any sparkle or metal in it.
