I would email Tim Boughner at Tim's Aircraft Repair:
Tim Boughner
Tim's Aircraft Repair
Vaughan Ranch Airfield
tim@timsair.com
Close to Seattle. He knows Maules very well and has a repeatable field approved repair for this Maule installation that you can present to your local FSDO for approval on your aircraft. The Maule design is poor to say the least. Good luck.
Seattle A&P, IA, DAR.
Matt