Front Disc Brake conversion *Please Help*

[Tortuga_64]

I recently did a front brake conversion on my 64, I used spindles off of a later 60s to 70s truck, not sure of the year. The bolt pattern of the rotors is a 5 on 5, I'm looking to convert it to 5 x 4.75 to use the wheels that i want. I've read somewhere you can use a rotor off of a chevelle or another application on the the spindles that i have and it will convert it to a 5 x 4.75. Any help or ideas would be greatly appreciated