The griffin works great. Its the biggest one you can get with an exact fit. If you have the front flange mount it is part # 7-70138. the rear/side flange mount is part number 7-70137. I incorrectly ordered the side mount one first and sent it back for the other one. Griffins fitment info was vague on that. Be careful with the drain plug threads. I put in a zinc anode in the drain hole to check fit and stripped the threads because I didn't use teflon tape for the test fit. So I am pretty bummed considering the cost. Some day I will fix it correctly but filled the threads with sealer for now.