Getting fed up...
I ordered front wheel cyls (L&R) for my 66 Valiant from "Parts Geek". Received two left cyls, even though the boxes were marked correctly (one boxed wrong). Went to install the correct cyl and it would not tighten to the backing plate (mounting area machined wrong). They wanted me to supply a VIN number, and take pictures before they would correct the problem. No Vin number (race car, purchased from a salvage yard 20 years ago), I can't do pictures, and pictures would not show the incorrect machining. Wound up going to O'Riellys and getting "kits" and rebuilt my cyls.