Last year my wife and I replaced the vinyl trim on my Cobra trailer. It
took some muscle to pull the strips through. First, we soaked the trim
in a bucket filled with warm water and dishwashing liquid to add some
slick. The warm water made the vinyl more pliable.

When we started pulling, the first ten feet went easily. Then, the
lubrication wore off. We started over with Pam spray. That worked well.
To pull the vinyl, I used locking pliers. As I pulled, the wife
sprayed.

When the pulling was done, all that was needed was to pop-rivet the
vinyl ends to the trailer.

Then, our arms were tired.

Raul Boerner