Mike Spera wrote:
After 13 years since recovering, my Cherokee 140 glareshield vinyl has
developed a crack that has gotten pretty ugly.

I was happy with the original (when the covering was new). I liked the
fact that it was solid and could be grabbed as a handhold.

I'm surprised you think it's a good idea to use it as a handhold. Most
of the glareshield installations I'm familiar with are just attached
with a few flimsy screws.