I used Frankford Plating - 2500 block of Orthodox Street, Phila., PA. Just off I-95 North from Ben Franklin Bridge. I believe they give a 10year guarantee but I could be wrong. They been in business since the 70's and did the chrome for brother's '67 GTX in the early '90's that still looks new! They did a large order for my '66 Barracuda that turned out EXCELLENT!!! Ask for John the owner's son.

http://66plybarraforms.shutterfly.com/