Welcome back! This past fall, my 2019 Ford F-150 with the 10-speed transmission (10r80) and Ecoboost engine (3.5L) started to shudder / rumble when I was driving. Here's a video of my diagnostic approach and how, eventually, I came to the decision that it was my torque converter. This is part one of a two part series showing my lowering of the transmission, replacement of the torque converter, and reassembly of the truck.
When doing any car maintenance or repair work, it’s best to have your tools and supplies on hand before you get started. The Amazon affiliates links below are for the products Ive used in the past for doing filter and fluid changes.
Mercon ULV Pack of 10qt: https://amzn.to/3E4t9Hh
10r80 Transmission Filter: https://amzn.to/3E3JWdy
Transfer Case Fluid: https://amzn.to/4kW2dds