The 47 and 48 cab had the extra center support that runs from just below the rear glass to the floor to provide support for the center cab support at the rear. In 49 they went to the shackle cab support, eliminating the need for the center cab support. Coincidentally, it made room for the gas tank. If it were mine, I wouldn't touch the center cab support.
Last edited by 52Carl; 09/03/2013 11:44 PM.
