Dynatrac Tech Info and News

Dynatrac™ continues to push the limits of innovation in axle assembly technology, with its all-new ProRock 80-IRS® Independent Axle Assembly. This is the evolution of the Pro60-IRS® and complements the ProRock XD60-IFS. The ProRock 80-IRS is designed to exceed the demanding needs of racing, military and commercial applications. It incorporates Dynatrac innovations from the company’s line of ProRock™ solid axles and the engineering and expertise that Dynatrac team brings to every project. Continue reading →

We've had several people ask if load bolts are a useful method of strengthening ring gear teeth. The answer is that load bolts are NOT helpful for off road vehicles. Furthermore they mislead users into thinking they’re protected if their housing is so equipped. This is why Dynatrac’s focus has always been on designing a highly rigid housing as the best way to ensure gear strength and durability. Spend your money on a US-made ProRock, and not a load bolt gimmick. Continue reading →

In 2003 Dynatrac was the first company to engineer the Free-Spin™ manual locking hub conversion kit to replace the problematic unit wheel bearings found on Ford Super Duty and Dodge Ram Heavy Duty ¾- and 1-ton 4x4 pickup trucks. Unitized wheel bearings are especially prone to wear on lifted applications with bigger tires, and on trucks used for commercial purposes that see heavy-duty use all day, every day. The Dynatrac Free-Spin locking hub conversion kit reduces parasitic friction and wear on the front axleshafts, ring and pinion, differential bearings, and front driveshaft and U-joints. Reduced friction equates to increased fuel economy and decreased drivetrain noise on the highway. The Dynatrac Free-Spin kit is the only locking hub conversion kit that is 100 percent made in the U.S. Continue reading →

The Dana 44 has been a desirable axle for Jeep builds nearly since its introduction in the 1940s. But before you get too excited about scoring a Postal Jeep 44 or even spend much energy drooling over the next-gen or new generation Dana 44 used under the 2007-2016 Jeep Wrangler JK, you owe it to yourself to learn the facts. Not all 44s are equal. The Dana 44 has been manufactured for nearly 70 years, and was original equipment under Jeep, Ford, GM, Dodge, International Harvester and Studebaker vehicles, and even the Isuzu Rodeo and Honda Passport. And almost every one of these had some unique, funky specification just for that model. The Dana 44 has been offered in both high- and low-pinion, with centered and offset pumpkins. Factory axleshafts ranged from 10-spline through 32 with diameters from 1.175-inch up to 1.41-inch. Continue reading →

The first thought most people have after lifting their Jeep Wrangler JK and fitting it with 35-inch or taller tires is, that looks cool! The second thought is usually, wow, this thing doesn’t stop very well anymore – I need a brake upgrade! When you install larger and heavier wheels and tires on the popular Jeep JK, the stock brakes have a hard time bringing the increased mass to a stop. The result is that you lose confidence in your ability to bring the Jeep to a stop as needed and the fun-factor of the vehicle is reduced. The aftermarket recognized this need, and there are quite a few brake upgrades available. Dynatrac recently introduced its ProGrip Brake System for 2007-2015 Jeep Wranglers, which is unique in how it solves the braking issue. Continue reading →

You probably noticed pretty quickly that we have done a complete overhaul of our website. The new Dynatrac.com has a modern look to it and is responsive to automatically reconfigure to display and function well on smarthpones, tablets and an unlimited variety of computer screen sizes. But we didn’t build this website for us, we built it for you! So we want to know what you think! Kick the tires, engage the lockers and explore our new website. Then let us know what you think. Continue reading →

Instead of forcing our customers into a single axle option for their Jeep JK Wrangler, Wrangler Unlimited, Rubicon, TJ, YJ and XJ Cherokee, Dynatrac offers many different levels of complete bolt-in off-road axle assemblies to meet a broad variety of ways that people use their vehicles. From the Mopar JK Rubicon Dana 44 to the ProRock 80,™ we can meet just about every need, can help you choose the option that best fits your needs, including your budget. Continue reading →

Any drive axle must be capable of performing two functions: Support the weight of the vehicle safely and transmit power to the wheels for propulsion. By design, all steering (front) drive axles are full-floating, but rear drive axles may be semi-floating or full-floating. Continue reading →

If you're shopping for an off-road axle for your Jeep, there are a lot of choices. They all promise to be a bolt-in and an upgrade to the factory axles, but don't be fooled: there are some key differences! If you're looking for a Dana 44 upgrade or the strength and durability of a Dana 60-based axle, here are some important questions you need to ask companies that you're considering Continue reading →

You’re probably familiar with Dynatrac and its axles, but did you know that the company was the first to introduce a high-clearance differential housing for off-roading? In 2002 the ProRock 60® debuted and changed the off-road axle industry forever. The patented design of the ProRock 60 provides more ground clearance than a much weaker and less capable Dana 44 axle, and a full inch more clearance than a Dynatrac Pro 60™ or traditional Dana 60. This feature alone allows your 4x4 to keep moving forward up the trail, instead of hung up and stuck. Continue reading →