[myersm]

Dave,
I have a 2002 3023. A couple years ago I changed my top bag seal. It was pretty easy. Eventually I'll have to replace the side seals as well... but for that I'll have to rotate the shell to get to the whole seal.
Just make sure you put some wood on the top of the rear shell so you don't dent the surface while working on it. And be carefull in folding the ends so they are not too bulky. I built the seal in place... that is, stapled the fabric to the shell, then laid in the foam, and stapled it closed.
I used my 18 guage staple gun, woked great. And, you will have to re-seal the top metal seal as well.
Good luck...