Test Drive and Footage Review

What happens here

With the GoPro camera securely mounted, the owner begins a test drive. He accelerates up to speed and then coasts down a hill to replicate the vibration condition. The footage from under the truck is displayed alongside his commentary. He observes that there is little vibration during acceleration but a significant, rhythmic vibration when slowing down, particularly around 20-30 MPH. He also double-checks the exhaust problem, confirming that the tailpipe is completely detached from the muffler. He then solicits opinions from his viewers about the driveshaft issue based on the observed footage and his description of the vibration.

Goal: Observe and record the drivetrain vibration during operation.