Updated, it's a TerraFlex spacer in the rear and my buddy's shop manager has only heard of one failing before... on a Grand. So, there we are.
Shockingly, and whether this is do to my buddy and who he is or just overall awesome customer service, they're going to warranty the parts and labor. So, two new spacers are heading my way.
265/70-17 BFGoodrich All-Terrain T/A KO, 2" lift, JK Wrangler Moab wheels, Spidertrax Spacers, Rola Roof Rack.