According to all the research I've done for my car with rear drum and front disc brakes, the correct wheel codes are JC/JO for Rally II and HK for steel wheels. I've been looking for a spare wheel and have not yet found one of these coded wheels. However, I'm told the JA code fits, but does anyone out there know FOR SURE that JA or any other code will work?
My car has factory installed front 4 piston caliper disc and rear drums. The original wheels came with the car and they are all JC. Never had any issue with fit.
68' Firebird 400 convertible, numbers matching, solar red w/ deluxe parchment interior. 66' Pontiac Ventura Hardtop 66' Pontiac Catalina Convertible