[Captainfab]

Running those longer axles really isn't a good idea. The wheel bearings may or may not be riding on a sufficient area of the axle. Then your brake shoes will not be making full contact with the drums. You will also have dirt, gravel. etc. getting inside your rear drums. I would strongly suggest the correct length axles. You will have to either buy the conversion axles, or have the original ones plugged and drilled to 5 x 5". But only modify the original axles if the wheel/axle bearing surfaces are in excellent condition.