4.5 bolt circle
5x5
It is 4.5".
What is the bolt pattern on a 1968 Pontiac Catalina
I assume your talking wheel bolt size pattern, it's 5x5.
The bolt pattern on a 1969 Dodge Coronet is 5x4.5 inches (5x114.3 mm). This means there are five bolt holes, and the distance between the centers of two opposite bolt holes is 4.5 inches. This specification is common for many classic Chrysler vehicles from that era.
coronet 440, coronet 500, and the coronet R/T.
5x5
5" x 4.5"
It has a 5 on 4.5 bolt pattern.
4 x 4.5"
According to Chrysler Historical Collection archives, the production numbers for the 1968 Dodge Coronet 500 was 2,527; the Coronet R/T was 569; and no convertibles were ever available for the Coronet Super Bee model.