Most of GW timing chain covers start peeling in the upper left side corner first for some reason and then spread from there.
On my 2006 GW, I finally just pulled it off, bead blasted it and then powder coated it myself about a year ago. I used a light gray, similar to the original.
It came out very similar to Jimamiah's, and it's withstood a lot of road wear since with nary an issue.