The rims won't fit. As to needing the selectable hubs on a D30, that's debatable. Do you have a locker in the front, what kind? Selectable hubs are easier to service. If you break a shaft, you can unlock the hub, and limp out in 3wd. With a unit bearing (stock on D30), you have to change the whole thing out. I was going to go with selectable hubs on a D30, but decided to wait for the D44. My .02
Bobby
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