Crate Axle Confessional -- Technical Article -- Chevy High Performance Magazine
Unlike stock axle tubes, which are pressed into the case then secured by a few small plug welds, Moser tubes are fully welded into the case. Also, the case ends are 1/4 inch thicker than stock (3.875 versus 3.650) and deeper to permit greater tube engagement. This distributes torsional stress over a larger area of the tubes and eliminates the classic 12-bolt tube failure problem.
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