I explained in a previous post that when I had some repair work done to the bed, I requested they align it with the cab. They found the bed could not be moved any further in the direction needed, and asked me to make an appointment for them to move the cab. All the work is done from below ... no impact to the interior. Raise truck up on a lift, loosen bolts, jack cab to desired position, tighten bolts, and return to the ground. My bed and cab were flush on one side but misaligned 3/4" on the other, so they only needed to moved it about 3/8". AND, they didn't just slide the entire cab sideways ... they must have rotated it a bit on the chassis because alignment with the front bumper was not affected.