No. Mine didnt. I had a 66 catalina 4 dr. It was all original and had 4 wheel drum brakes.1969 was the first year front disc breaks were introduced.
Try using eBay or craigslist for reference
They varied between 3835 and 4005 pounds. http://www.oldride.com/library/1966_pontiac_catalina.html
Front disc brakes were an option when the car came out in 1966
Driver side front cylinder.
My 1971 Ford Mustang , fastback , with 351 Cleveland , 4 barrel , had drum brakes on the front
The rims were original 14 inch, but with factory front disc brakes 15 inch
it is a recreation or clone of a particular car. For instance taking a 1966 Pontiac LeMans and making it look like a 1966 Pontiac GTO.
Most Catalina's were equipped with a 389 cubic inch V-8 engine. The 2+2 sport models had a 421 cubic inch engine. The 389 engines came in different configurations that affected the horsepower rating. Open the hood and face the engine. On the front, left side (as you face it) of the engine block is a two letter engine code. You can reference that code against another source and determine a lot of other information about the engine.
Pontiac gto
in a 1966 chiltons repair manual.
5140
go to manheimgold.com and figure it out.