Was wondering if anybody here has ever used either of these tools to remove and install the snap ring on the front drum in a 727 trans. With trans shops charging $15 to $20 just to remove or install, and having to leave it with them 'til the next day, these kind of look like they might work. I tried C-Clamps and all I ever got was a bent retainer. Any thoughts or advice would be appreciated. Thanks, Jeff