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Heavy Duty Square Trailer Jacks
Heavy Duty Square Jacks are strong, durable and sturdy, plus the wide variety of styles makes these jacks the best choice for heavy loads. With these models, user will need to physically lift jack at the foot to return to up position.
Heavy Duty Square Jacks are strong, durable and sturdy, plus the wide variety of styles make these jacks the best choice for heavy loads.
Heavy Duty Square Jacks Accessories - mounts, cranks, extension tube
Heavy Duty Square Trailer Jacks

Heavy duty square trailer jacks are strong, durable and sturdy and feature a 12,000 pound support capacity and 10,000 pound lift capacity.  Ideal for construction, heavy-duty utility, horse and livestock trailers and agricultural use.  If you need to lift a heavy load, heavy duty square trailer jacks are the right choice. 

Non-Spring Return Models, user will need to physically lift jack at the foot to return to up position.

Welcome to Michigan Truck Spring & TruckSpring.com

Since 1926, Michigan Truck Spring has been installing and using the same high quality truck parts that you'll find on our website. In fact, we install everything we sell, and have been selling online as TruckSpring.com since 2001.

Whether you're looking to overhaul your truck suspension, or make a minor repair, our mission is simple - to make sure you have the quality parts you need, and to become your trusted source for truck parts.

Located in the heart of the Midwest, Michigan Truck Spring employees are trained technicians in truck parts and repair. We're here to help, whether it's selecting the right product for your vehicle, an installation question, or a maintenance question, we'll help you through your project. We work hard to make sure you get the right parts for the job. You won't find a company more passionate about truck parts than Michigan Truck Spring.