The DMI and Winters Alum. U-Joints are too big for the midgets to use. They are oversize compared an MPD/Sander to take the strain of a Sprint Car. When I first got the DMI joint's in I sold one to a midget customer without checking the size and it did much the same as what happened to you, but didn't tear up as much.(That cost me a little money) We made it right for them, but I learned a good lesson.

The best u-joints for a midget are still the MPD or Sander(Although the Sander will barely rub as well) or a l/w steel-Alum. None of the companies listed have a different part number for sprint and midget u-joints unless it may be for the Esslinger.

I would still use a DMI Oversize ball, steel housing(To protect the feet) if you wish, and the DMI Tube because they where not the cause. I really like the housing and oversize ball. The ball eliminates any chance for u-joint rub on the shoulder/cup area.

To answer your question, Yes I have seen that problem.

Sorry to hear of your problems, but at least you weren't hurt.

Best of Luck