73 model year saw a lot of federal regs kick in....5 MPH bumpers, increased emmissions controls, etc... I always heard 73 was the first year for mandatory disc brakes....does anyone have a 73-74 E-body or B-body with drum brakes? Could these cars built after 72 be cars built for Canada or export? If so, they would not be mandatory disc brakes. This has turned into quite an intresting post. I also figured the small bolt pattern went away during this time to save $$ by standardizing, just like the "standard" single type of marker lite that was adopted in 72.
Thats what is so cool about Mopars...i've been playing with these cars for almost 30 years..and I learn something new almost every week about them.
:beer:
