8-3/4 BBP Wheel Register Size?

Dantra said
Got it figured out.. The axles fit perfect. Thanks guys

Just to answer the question, Ford is 2.79" & Mopar is 2.81". I made a go/no-go gauge out of a piece of exhaust tubing & marked it, Ford on one end & Mopar on the other. I've simply modded the couple of Ford rims I've used in the past.