[wolffcub]

Here is a rough drawing of whats happens. The front tab is flat and the chassis is curved. As you tighten the bolts the tab will bend to conform to the chassis but that puts major stress on the tab where it is welded to the tank. The pad part of the tab that is actually welded to the tank will actually start to distort causing the welded perimeter to start to pull apart.



The easy fix is to allow it to conform to the chassis and them re-weld just the tab portion.




Simply cut the tab along the green lines right up next to the pad portion. Leave about 1/4" uncut in the center. You want to do this from both ends of the tab. Then re-bolt the tank on the chassis and tighten the bolts. You can see how the tab will then bend up to follow the chassis curve. Once you are all tight you just have to tack up the bent up tab portions back to the pad from the underside then remove the tank and fully weld the tabs back to the pads.



In my opinion this is a must as mine cracked on both sides very bad. and this would have been avoided if i did this mod to begin with.