Glenn240

For what it is worth, I used to run a small shop in Virginia call Z-Car restorations, but got out of it in the 90's for various reasons. I have installed many of these on customers cars, and they work well as some others have stated. I had about 17 sets at one time, but went through all of them but one set. Mine were originally distributed / sold by Keystone, and it was my belief (at the time) that they were Tabco parts. As soon as I can dig out my old set I will see if I can still read the labels and report back if I can find any useful info.