Hello all, does anyone have a good alternative to the original sleeves on the A/C hoses? C60D4 #6, #12...#3873930 & #542944 are long since discontinued. I'd like to find something other than copper tubing wrap from a hardware store. Searched this site, and others, along with Old Air Products. Any suggestions? Also, were ribbed hoses used before 69? Thanks, trying to finish off the A/C system restoration. 10A 68,L35-TH400, with factory AC. thanks