rear end conversion..4-4.5

Not sure if you can use the 8.25 discs on the 8.75 as the axle offset may be different. The 8.75 uses pressed bearings on the axles where as the 8.25 bearings are in the housing. From what I've read, you can use discs on 8.75 with "green bearings". Of course I may be wrong.