I had the same problem with wheel skirt gaskets , I used chip clips for potatoe chip bags you can get them at dollar store. About five to the bag. Put glue on top edge of skirt, place gaskit on little at a time, use clips to hold until glue sets. Be sure to fit gaskit frist the ones I had were left and rifgt and not marked. holes should lineup. Then trim excess gasket material from holes. The skirts will need to be realigned.
