I have done a search for "JB Weld" and found it referenced through many threads. Most uses were to fix plastic parts, e.g. fuel tanks. A couple references were made to use on iron. But, what about aluminum? I have no experience with JB Weld. My old LawnBoy (21" commercial handover, pre-Duraforce engine) with cast aluminum deck has the blind holes for the height adjusters badly worn. The rib between the 3.5 and 3.0 inch, and rib between 3.0 and 2.5 inch settings is practically gone. This mower is seven years old, mowed over 3.500 lawns - but the engine still runs great. We use it as a second mower, a backup. My neighbor suggested putting dowels in the holes (covered with petroleum jelly), flush with the outside surface. Then he suggested using JB Weld to layer up the ribs so that the shape is restored to the original. After setup, the dowels can be pulled out (or drilled out), and the pin on the adjuster lever would have new holes to engage. He as "sure" it would work for aluminum, even though he has never used it on aluminum. He just suggested to be certain the surfaces were very clean. Anybody with any experience in using JB Weld like this?