There is nothing wrong with the quality of this seal. However, I didn't use it. I used a 12066A on my 1995 FLSTC. H.D. has superseded 12066 with 12066A, which is a much improved design, double lip type seal. I wish I had known about this prior to purchasing the 12066 seals. H.D. Service bulletin M-1161 tells the dealers to use up the 12066 seals left in stock before going to the 12066A. I have attached a copy of the service bulletin.