I believe the cab is secured to the frame at 4 points.
How much side-to-side adjustment can be done, to center the cab on the frame?
My truck was T-boned on the passenger side, and now it doesn't line up with the bed. So I am thinking the whole cab was pushed in a bit.
2013 Silverado 2500HD crewcab 4x4 LT Z71 diesel standard box