Today while pulling out of father in laws garage to clean up after an oil change I left the rear hatch open the rear wiper arm caught the bottom of the garage door and pulled until the arm broke at the drive gear. After inspection the wiper motor bracket bent and came out of one grommet and some broken plastic bushings but worse yet the hatch sheetmetal is pulled out where the hole is for the wiper drive. I want to fix it myself and I need to know is the area around the hole flat or is there a lip,recess,groove I can not tell because the sheetmetal around the hole is pulled out. If anyone knows thank you.