Ok did a search and I'm going to rebuild my stock rear springs and go with a shackle flip. I've read that people are using .030" to .060" thick UHMW-PE tape for lining the springs. I'd like to get it from www.mcmaster.com as they are insanely fast at shipping to me since I live close. So far all I can find on the 3" roll is .0045", .0065" and .0115" thick. These are all on page 3201 of the online catalog. I think that stuff is too thin. Anyone have the page number or item number for the thicker stuff on a roll?