"Computer-optimized, cross-brace design within the differential cover increases the structural rigidity of the axle acting as a truss"By chance did you get any pics of the inside facing of the cover? ARB makes reference to there being additional structural bracketing but without any image of what they're talking about.
I believe this is what you are referring to.
What they are talking about here is the design element. The outside design has extra material left to right to simulate a continuous support from axle tube to axle tube when bolted on. There is 2 bolts on each side aligned with the axle tubes. You can plainly see the extra structure that is built up across the cover acting like a truss or girdle. That extra material is on the exterior, not on interior of cover.Hopefully you can understand what I'm trying to say bud.
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