I just recently purchased a max II and I jacked it up to tension the chains. I noticed several of the sprockets have a bushing welded to them to take the slop out of the bolt hole. When I turn the axle by hand I can see the axle turning slightly inside the sprocket. The holes in the axles are appereantly out of round. Is there a fix for this or do I need to buy new axles? I was thinking I could pull them and drill a new hole 90 degrees to the original hole. Would this weaken the axle too much?