It's been discussed many times, and it occurs on stock trucks, leveled trucks, and lifted trucks. Those who have leveling kits can prove that it's combination of things, crappy shocks and the Upper Control Arm (UCA) hitting the coilbucket (area that the coilover mounts into). You, however, have a stock truck, and that means that the UCA/Coilbucket banging isn't your issue. It's a well known fact that our stock shocks, both front and rear, are complete garbage. I'd bet that the shocks are your problem.
Yes, I know, it's hard to believe, considering it's a brand new truck, but that's just the nature of these beasts. Someone please correct me if I'm wrong here, but the way the stock front suspension is set up, the shock itself is what limits downtravel. When you reach full droop (suspension dropped out entirely, such as "one wheel falling into a pot hole or off a small curb") the noise you are hearing is the shock itself extending as far as it can, thus stopping the wheel from 'falling' farther. When an owner installs a leveling kit, this burden that was previously placed on the shock, has now been placed on the UCA, which will contact the coilbucket prior to the shock reaching full extension.
Even if the shocks aren't bad, you can upgrade to a much much better set of Bilstein shock absorbers for all four corners for under $400 probably. They will outlive the truck itself.
Yes, I know, it's hard to believe, considering it's a brand new truck, but that's just the nature of these beasts. Someone please correct me if I'm wrong here, but the way the stock front suspension is set up, the shock itself is what limits downtravel. When you reach full droop (suspension dropped out entirely, such as "one wheel falling into a pot hole or off a small curb") the noise you are hearing is the shock itself extending as far as it can, thus stopping the wheel from 'falling' farther. When an owner installs a leveling kit, this burden that was previously placed on the shock, has now been placed on the UCA, which will contact the coilbucket prior to the shock reaching full extension.
Even if the shocks aren't bad, you can upgrade to a much much better set of Bilstein shock absorbers for all four corners for under $400 probably. They will outlive the truck itself.
