Dana DS10088918 Ultimate Dana 60 Crate Axle 2018+ Jeep JL ‐ Rear 5.38 Ratio ARB Air Locker. Full Floater 8X6.5" Wheel Bolt Pattern. As Jeep owners modify their axles for even better performance over rocks, across sand, and through mud, Dana has taken notice. That is why Ultimate Dana 60 rear axles are built with the innovations that give you the confidence to take on the toughest terrain. Get the performance and dependability of Ultimate Dana 60 for your Jeep Wrangler!