Dynatrac ProRock 80
Designed for Ultra4 racers and hard-core rock-crawlers, Dynatrac’s ProRock 80 rear axle was on display at the 2012 SEMA Show (it was technically released a little earlier this year). The 80 features a 11.25-inch ring gear with 37-spline pinion. The high-clearance housing it built for incredible strength while still maintaining great obstacle clearance on the trails. Dynatrac says it’s only 40 pounds heaving and 1 inch lower than the company’s patented high-clearance ProRock 60. It features standard 4-inch axle tubes, as well as standard 40-spline full-floating axle shafts. The USA-made Dana gears are available in rations up to 5.38, with Dynatrac noting no special gears are required. For more information, visit www.dynatrac.com.
More 2012 SEMA Coverage
Vintage Willys Jeep Displayed
