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[mchat]

I'll post pics tonight of what's left of my spacers when I attempted (using a torque wrench, of course) to tighten the rear bolts to 160ft lbs.

I eventually carefully cut spacers from the stock unit so that they'd be the same height as the spacers provided and used those. With the thicker steel spacers (as opposed to the aluminum ones that came with the kit) I was able to torque it down to 160ftlbs no problem.