5. Moving to the rear axle, Dustin found a Dana 70U out of an '01 Dodge Ram 2500 at a local wrecking yard for $1,400. The reason he went with this particular rear axle is because it features disc brakes. To start this buildup, Dustin ordered a Detroit Locker for the earlier style Dana 70 HD. Next he got a set of 5.13:1 gears and a master install kit from Yukon Gear. The axleshafts are 35-splined units, also from Randy's Ring & Pinion, designed as a one-size-fits-all application for Dana 60s. Altogether these parts totaled $1,468 without tax.