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Product DETAILS

10000 lbs

TONGUE WEIGHT LIFT CAPACITY

14:1

Gear Ratio

TheSuperMax Gearboxis built to remove the most inefficient part of trailer operation - manual cranking. By pairing with a standard cordless drill, it converts a slow, physically demanding task into a fast, controlled, and repeatable process. At its core is a high-torque reduction system, engineered to multiply input power and shift the workload away from the operator and into the gearbox itself. This results in smoother operation, faster lifting, and far less physical strain during real-world use.

With a 14:1 gear reduction, the SuperMax is optimized for heavy lifting applications where torque matters more than speed. Instead of forcing your drill to do all the work, the gearbox provides the mechanical advantage needed to lift under load without excessive effort or loss of control. The housing is machined from billet aluminum to handle repeated high-torque cycles and demanding environments, making it suitable for job sites, daily-use trailers, and fleet applications where reliability is non-negotiable.

The design also prioritizes practicality. A quick attach system allows you to move the gearbox between trailers in seconds without permanent modifications, reducing the need to outfit each trailer individually. Operation is straightforward - pair it with a standard cordless drill, set your clutch appropriately, and you have a predictable, controlled lifting system with no wiring, no install complexity, and no learning curve.

Manufactured in the USA, the SuperMax is intended as a durable, long-term solution rather than a light-duty accessory. It’s built for users who depend on their equipment to perform consistently, whether that’s on a job site, in a fleet, or during regular heavy-duty use. At a fundamental level, it’s a mechanical advantage tool designed to reduce effort, improve efficiency, and eliminate the need for manual cranking altogether.

Cordless Drill Powered

Use your cordless drill to raise and lower your trailer effortlessly.

14:1 Gear Reduction System

Our multi-stage gear reduction allows raising and lowering even the heaviest trailers without strain on you or your drill.

Universal Mounting System

Our wide selection of brackets makes mounting your Trailer Gearbox an easy no sweat task.

Fleet Friendly Design

Carry one gearbox on your truck and use with multiple trailers. Gearboxes go on and off in seconds.

Trailer Gear Box

Multi-Stage Gear Reduction

Gear reduction is what sets Trailer Gearbox apart from other trailer lifting solutions. Our multi-stage gear reduction takes your drill’s torque and multiplies it through multiple stages of spur gears, delivering efficient power to the jack. This allows you to raise and lower even the heaviest trailers without putting excessive strain on the drill or the user. Single-stage or direct drive options quickly max out your drill, while worm gear designs are inefficient and waste torque before it ever reaches the jack.

Trailer Gear Box

Heavy-Duty Construction

Our Gearboxes are engineered to take a beating. Constructed from high strength steel and billet aluminum and coated with an ultra durable anodized finish, you can be sure that your brackets can stand up to heavy loads and the most extream weather.

Trailer Gear Box

WE BACK UP OUR PRODUCTS

At Trailer Gearbox, we stand behind what we build. If it’s not right, we make it right-no runaround, no excuses. Our 5-Year Warranty is backed by real human support and our NO-BS commitment to our customers.

Frequently Asked Questions:

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Made in the USA

Proudly Designed, Built & Tested
In The United States

Simple Returns

If It’s Not Right, We’ll Make
It Right –– Guaranteed

Real Human Support

Talk To A Team That Actually
Uses The Product

Built For Real Work

Trusted by Haulers, Pros, and
Weekend Warriors Alike