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Put a truss on that 30. These things will flex throwing the ring gear and pinion gear out of alignment causing them to strip out.

A truss and a heavy duty diff cover will go a long ways to getting rid of that problem.

I agree with much that has been said here. Build the 30, and enjoy the lighter weight. If you break it, go find a 60.

I've built mine up quite a ways and still plan on swapping 44 outers onto it. I have everything but the bolt patterns worked out.
 
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