Dive brakes in the wings gave the A-36A greater stability in a dive; however, a myth has arisen that they were they were useless due to malfunctions or because of the danger of deploying them and that they should be wired closed.[14] Capt. Charles E. Dills, 27th Fighter Bomber Group, 522nd Squadron, XIIth Air Force emphatically stated in a postwar interview: "I flew the A-36 for 39 of my 94 missions, from 11/43 to 3/44. They were never wired shut in Italy in combat. This 'wired shut' story apparently came from the training group at Harding Field, Baton Rouge, LA."
sorry ny bad. <S>
You copied that from the wiki article, but the article self-contradicts itself several times and lower on the page it also mentions wiring the dive flaps shut, limiting dive angles to 70 degrees, and other things.
Oh, as an aside: Chalenge, I've never heard a story of a P-51 ripping its wings off, to date. This was the first I'd heard of it, with the A-36 story.