Making it a better driver

A 74 with a slant could have drum or disc up front: drum would be 4" bolt pattern, disc would be 4.5". Disc were standard on the V8 cars, but optional with /6. Factory style disc brakes will fit inside 14" wheels. TheRamMan advertises that his kit will too, because it's basically newly fabricated stock parts. He even has a 4" bolt pattern rotor in case you don't want to change bolt patterns.

The bolt pattern is measured across lug nuts (skipping one) correct? Because measuring like that, it's 4.5". If you measure to the adjacent lug nut, it's 4 inch. The tape measure don't lie!