The Dana 60™ series rear end has, for many years, been one of drag racing's most popular differentials, mainly due to the heavy-duty nature of the unit itself. The Dana features a large 9-3/4" diameter ring gear and the availability of aftermarket 8620 or 9310 alloy gears with ratios of 3.54 to 7.17. The Dana is the only passenger OEM. rear that was available with 35-spline axles in the original factory configuration. The main drawback to the Dana is the weight. By comparison, a complete Dana 60™ is approximately 35 pounds heavier than a 9" with a braced steel housing. A newly designed center casting has threaded adjusters for the carrier / spool bearing and pad for the Mopar type pinion snubber. The one-piece center casting creates stiffness not found in thirdmember type rears. The Dana 60™ offers excellent strength and reliability for the dollar. MW has a complete array of specialized components to further improve a Dana 60™.