2009 Drag Pak Challengers were shipped with a stock rear suspension cradle—minus brakes, differential centersection, and axle half shafts. Since the entire unit was destined to be replaced by a live axle for drag racing, it was a wasteful scenario. For 2010, Chrysler simplified matters by substituting this temporary rear axle unit that’s made by Al-Ko of Elkhart, Indiana, and is secured to the underbody by four bolts. The white paper sticker on the axle tube reads: “Shipping bracket only, discard.” Again, note the Roush-modified axle hump area. It’ll fit anything up to a Dana 60 rear axle.