Hello,
I also have a Gator 550 and my parking brake keeps failing. On my Gator, the cable has snapped twice right at the pedal, due to metal fatigue. In order to try to get JD to fix this problem, which I feel is a safety defect, I submitted it as a safety defect to the Consumer Products Safety Commission. (
CPSC Home | CPSC.gov) There is a button the right side to submit a report of an unsafe product. The form isn't too long to fill out.
I also mailed a short letter to John Deere stating that I believe there is a safety defect with my Gator, stated the details that the parking brake failed and my concern it could cause an accident. I also mentioned that I submitted a report to the government.
John Deere call me a few days after I mailed the letter and said that they are looking into it (by law they have to respond to a formal complaint lodged with the CPSC). I am hoping that if other owners report the problems that they are having with the brake ,it might spur John Deere into redesigning the parking brake and performing a recall. So if your parking brake has failed, please take a few minutes and submit a formal report!
My Gator now has about 185 hours but it is used for short trips so the parking brake gets applied many times per hour of use.
-W