Unleashing Hidden Power: Free Spin Kits


Today we’re sharing some insight about a game-changing upgrade for diesel trucks – the Free Spin Kit. But before diving in, let’s lay some groundwork about what these kits are and how they work.

Breaking Down the Mechanism

Free Spin Kits are designed to unlock your truck’s front wheels at the hubs. To illustrate the difference a Free Spin Kit can make, consider this: If you jack up your truck you would see your U joint spinning, along with everything else. But after you install a Free Spin Kit and unlock it, you would spin the wheel and notice your U joint isn’t spinning.

You’re effectively disconnecting it from the entire front axle at the wheel, but everything else still works flawlessly. Now, a question that often comes up is, “Will the brakes still work if the wheels are free spinning?” The answer is YES. Your brakes will continue to function as they should, regardless of the Free Spin Kit installation. You’re just removing the rotating mass from the equation which has several benefits.

The Impact on Fuel Economy

Perhaps one of the most overlooked benefits of Free Spin Kits is their positive impact on fuel economy. By design, these kits reduce the amount of energy your truck’s engine needs to transfer power to the wheels. This improved efficiency means your engine isn’t working as hard, so it consumes less fuel.

In today’s world, where fuel prices are a constant concern, this improvement in fuel economy can result in significant savings over time. And who doesn’t love saving money?

Lower Maintenance Costs

One of the significant advantages of Free Spin Kits is their maintenance-friendly nature. With fixed spindles, routine maintenance becomes much more manageable and less frequent than with factory unit bearings. This, in turn, translates into reduced long-term costs and more time enjoying the open road.

Built To Last

Free Spin Kits, however, are built to last. They’re constructed with heavy-duty materials that can withstand the rigors of off-roading, heavy towing, and other performance-demanding activities. In other words, these kits can take a beating and keep on ticking, providing you with peace of mind even in the toughest of conditions.

Let’s Talk About Axles

On RAM trucks, what you have is a unit bearing, which is quite different from the Ford trucks that employ an actual hub with bearings and races. Regardless of which you have, Free Spin Kits have benefits worth considering. We’ll hold off on talking about Chevy trucks for now as they primarily have IFS.

What’s The Catch?

One thing to note with Free Spin Kits is that to engage four-wheel drive, you’ll have to get out and lock the hubs in. It’s a small inconvenience considering the benefits, and if you’ve been around trucks for a while, you’ll find this pretty common.


Installing a free spin kit is a bit of a detailed and involved process, but it can easily be done by the average DIYer. We recently installed a DynaTrac Free-Spin Kit on our 2007 5.9L Cummins, check it out here: https://youtu.be/Ts0V7b4PSY0https://youtu.be/Ts0V7b4PSY0

The Takeaway:

All in all, a Free Spin Kit offers an array of advantages from improved fuel economy to reduced maintenance costs. Learn more about Dynatrac Free Spin Kits and Yukon Spin Free Kits here or give one of our experts a call at 888.99.DIESEL.

One thought on “Unleashing Hidden Power: Free Spin Kits

  1. I’m in total agreement on free spins..I’m old school 4×4 with lockout hubs… would love to put on my 17 ram 3500…is there a kit for my truck.. thanks

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