You may still need a tube type brace to actually stop the box from wiggling.
The cracks along the bottom are the reason I add the bottom plate in my kit. When the bottom plate is bolted, and welded to the side plate, it adds tremendous amounts of structure to that area of the unibody. No other company offers the bottom plate, but I feel it Is a crucial part.
the whole frame rail can still fail with a brace on the bottom and on the inside/outside of the steering box portion of the frame rail.
The only solution to prevent the inevitable issues is to plate the inside, outside and underside of the forward portion of the frame rails all the way down to the lower framerails
The track bar frame side bracket is always working the opposite direction of the steering gear while turning and the chassis will fail eventually once people install the JKS brackets (or similar)
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