ok first question i have for you ...whats your purpose for the swap...is it to upgrade the braking system or is it to fit 5 lug wheels....if its for new rim selections then like 87 mark series rotor simply replace your front rotors and the fronts done....then the rear axels can be filled and re drilled to the bolt pattern by a machine shop, or you can get 2 pass side axels out of a ranger or just buy the rear axel upgrade kits