Once you take the stern bench off the boat, turn it upside down and you'll see the center pads have 4 rivets holding them to the bench. Drill holes in the rivets and they will fall off. Once you put the new vinyl, use bigger rivets or drill new holes.
I have the same seats and was wondering if you knew how to get the bottom seats out?? The little middle pads are rotted and have a few holes in them!
I got my new upholstery here: www.zz-autogroup.com
They do most of the Sea-Doo boats and skis.
It was really easy to install it and it looks great.
If you have any question regarding the seats and installation will be happy to help.[attachment=1721:image.jpg][attachment=1721:image.jpg][attachment=1721:image.jpg]