I just ordered new shades from Camping World...they are custom made with day and night combos.
Best way to take out existing shade is by twisting metal frame and entire shade comes out; mine had original measurements written on metal...othersie, measure for exact replacement.
New shades had new clips to replace old ones. After carefully checking all clearances on both sides, and installing new clips, I snapped the new shades in and then screwed in the retaining screws for the strings. I had to move one of the screws to get the right tension.
Jerry and Julia, with Alex (35# Lhaso Apso)
2001 Holiday Rambler Admiral 32' MH
2008 HHR Toad