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4-post lift jacks, commonly called bridge jacks or rolling bridge jacks, expand the capabilities of a 4-post car lift by allowing the vehicle to be raised off the lift runways. This creates wheel-free access for tire service, brake work, suspension repairs and other maintenance that cannot be performed while the vehicle's tires remain supported by the runways.
At GarageAppeal.com, you'll find bridge jacks designed for compatible 4-post vehicle lifts used in home garages, automotive repair shops, dealerships and professional service facilities. Available models vary by lifting capacity, dimensions, operating system and lift compatibility, making it important to select the correct jack for your specific 4-post lift.
A bridge jack spans the space between the two runways of a 4-post lift. Depending on the design, the jack can typically be positioned along the runways beneath the front or rear lifting points of the vehicle.
Once positioned, the jack raises the vehicle from its appropriate lifting points while the 4-post lift continues to support the overall working platform. This allows the wheels to rise above the runways so they can be removed for service.
Because bridge-jack designs and operating procedures vary, always follow the lift and jack manufacturer's specifications for positioning, capacity and vehicle lifting points.
A rolling bridge jack is designed to move along compatible 4-post lift runways, allowing technicians to position the jack where it's needed for different vehicle wheelbases and lifting points.
This adjustability makes a rolling jack for a 4-post lift useful when servicing multiple types of cars, SUVs, light trucks and other compatible vehicles.
When comparing rolling bridge jacks, check the jack's overall dimensions, rail or runway compatibility, lifting range and rated capacity. A bridge jack should never be selected based on lifting capacity alone—the jack must also be compatible with the specific lift on which it will be used.
One of the main advantages of adding a bridge jack to a 4-post lift is the ability to perform wheel-free vehicle service.
With the tires raised above the runways, technicians can access the wheels and related components for tasks such as:
Without a bridge jack or another compatible wheel-free lifting system, a traditional drive-on 4-post lift generally supports the vehicle by its tires.
Some owners use a single bridge jack when they only need to raise one end of the vehicle at a time. Others equip their 4-post lift with two bridge jacks, allowing the front and rear of the vehicle to be raised for greater wheel-free access.
Using two compatible bridge jacks can make a 4-post lift significantly more versatile for repair and maintenance work.
The appropriate setup depends on your lift, vehicles and intended service applications. Always verify the capacity of each jack and follow the manufacturer's requirements when lifting a vehicle.
Compatibility should be one of your first considerations when selecting a 4-post lift bridge jack.
Important specifications to compare include:
Don't assume that a bridge jack will fit a 4-post lift simply because the weight capacity appears appropriate. Runway spacing, rail dimensions and jack construction can vary between lift manufacturers and models.
Bridge jacks are available in different lifting capacities for passenger vehicles, SUVs, light trucks and other applications.
Remember that the capacity of a bridge jack and the capacity of the 4-post lift are separate specifications. Both pieces of equipment must be appropriately rated for the vehicle and used according to the manufacturer's requirements.
For professional shops servicing a wide range of vehicles, choosing the appropriate capacity and vehicle coverage can help make the lift bay more versatile.
Bridge jacks aren't limited to commercial automotive shops. Owners of 4-post car lifts in home garages can also use compatible bridge jacks to expand the types of maintenance they can perform.
For professional facilities, rolling bridge jacks can transform a drive-on lift into a more versatile service bay by providing wheel-free access for additional repair operations.
If you're purchasing a new 4-post lift and expect to perform brake, tire, suspension or wheel service, consider bridge-jack compatibility when selecting the lift rather than treating the jack as an afterthought.
A bridge jack is a lifting device designed to span the runways of a compatible 4-post lift and raise the vehicle from its lifting points. This allows the wheels to be lifted above the runways for service.
A rolling bridge jack can be repositioned along compatible 4-post lift runways. This allows the jack to accommodate different vehicle wheelbases and lifting-point locations.
A bridge jack provides wheel-free access for jobs such as tire removal, brake work, suspension service and other repairs that require the vehicle's wheels to be raised from the lift runways.
One bridge jack can be used to raise one end of a vehicle when permitted by the manufacturer. Two compatible bridge jacks can provide front and rear wheel-free lifting for greater service access.
No. Bridge-jack compatibility varies by lift and jack model. Verify runway dimensions, jack specifications, lifting capacity and manufacturer compatibility before purchasing.
Choose a jack with adequate capacity for the portion of the vehicle it will lift and follow all manufacturer requirements. Never exceed the rated capacity of either the bridge jack or the 4-post lift.
Shop 4-post lift jacks and bridge jacks at GarageAppeal.com to add wheel-free lifting capability to compatible 4-post car lifts. Explore our complete selection of Car Lifts and compare rolling bridge jacks by capacity, lifting range, dimensions and lift compatibility to find the right equipment for your garage or automotive shop.
