Dropped my 2020 Silverado 1500 Crew Cab at the dealership this morning. Picked it up late afternoon and bed was aligned with the cab. However, the body line on the drivers side bed is slightly higher than the body line on the cab. Service department recommended me run it by the body shop and see what they think is wrong with it. Before I left the dealer I looked at approximately 10 2020 Silverado Crew Cabs On the lot, and they all were out of alignment.
Just take the TSB listed in previous post with you. I looked under the bed when I got home and all they did was remove the alignment pin on the front right corner of the bed so they could slide the bed.
In reference to my previous comment about the wheels sticking out different, they said that was due to the axle placement in the rear and there wasn’t really anything that could be done cause there are alignment slots in the leaf springs/axle where the bracket attaches. With my measurements, the passenger side rear tire sticks out 1/4” - 3/8” further than drivers. Thinking about putting a 1/4” - 3/8” wheel spacer on drivers side rear to fix that problem.