Stop in for a cup of coffee

So I'm headin' up to the Donut shop to check on the Derelicts this morning, today's Mopar was a'71 Challenger. In front of me I see a new model Cheby Tahoe. Something under the rear doesn't look right, no sign of the differential and a strange mechanism crossing from one side to the other :wtf: Hmmm thinking-face.png Did GM go IRS on that thing? I just looked it up and sure as ****, that big SOB has IRS in it.