Installing a swing back trailer jack offers enhanced maneuverability and ground clearance when your trailer is in use. This upgrade is achievable for most DIY enthusiasts with the right tools and a methodical approach, significantly improving your towing experience and protecting your investment.
Choosing the Right Swing Back Trailer Jack
Before diving into the installation, selecting the appropriate jack is crucial. This decision hinges on factors like your trailer’s weight capacity, frame dimensions, and desired lift height. Using an undersized jack can be dangerous, while an oversized one might be unnecessary and cumbersome.
Assessing Your Trailer’s Needs
Start by checking your trailer’s GVWR (Gross Vehicle Weight Rating). This figure, typically found on a plate near the trailer tongue, represents the maximum permissible weight of the loaded trailer. Choose a jack with a weight capacity exceeding your trailer’s GVWR to ensure a safe margin for error.
Next, measure the frame width of your trailer tongue. Swing back jacks are available in various sizes to accommodate different frame widths. Select one that fits snugly against your trailer frame, ensuring proper alignment and stability.
Finally, consider the required lift height. This refers to the distance the jack needs to extend to lift the trailer tongue off the ground when coupled to your tow vehicle. Factor in any anticipated variations in terrain and adjust accordingly.
Types of Swing Back Jacks
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A-Frame Jacks: Designed for A-frame trailers, these jacks typically feature bolt-on or weld-on installation options.
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Tube-Mount Jacks: Suitable for trailers with a straight tongue, these jacks are typically clamped or bolted onto the trailer frame.
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Side-Mount Jacks: Designed for trailers where space is limited, these jacks mount to the side of the trailer frame.
Preparing for Installation
Once you’ve selected the right swing back jack, gather the necessary tools and prepare your work area. This step is essential for a smooth and efficient installation process.
Gathering Your Tools and Materials
You’ll need the following tools and materials:
- New Swing Back Trailer Jack (with mounting hardware)
- Wrench Set (appropriate sizes for your jack’s mounting hardware)
- Socket Set (similar to wrench set)
- Measuring Tape
- Drill (if drilling is required)
- Drill Bits (appropriate size for your jack’s mounting hardware)
- Center Punch (for marking drill locations)
- Safety Glasses
- Gloves
- Grease Gun (for lubricating the jack)
- Torque Wrench (for tightening bolts to specifications)
- Level (to ensure proper alignment)
- Pen or Marker
Preparing the Trailer Frame
Before installing the jack, thoroughly clean the area on the trailer frame where it will be mounted. Remove any rust, dirt, or paint that could interfere with proper adhesion. Using a wire brush or sandpaper can be helpful for removing rust.
Inspect the frame for any signs of damage, such as cracks or bends. If damage is present, consult a professional welder for repair before proceeding with the installation. A compromised frame can lead to jack failure and potential safety hazards.
Installing the Swing Back Trailer Jack
This section details the step-by-step process of installing your swing back trailer jack. Always refer to the manufacturer’s instructions for your specific jack model, as installation procedures may vary slightly.
Bolt-On Installation
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Position the Jack: Align the jack on the trailer frame, ensuring it’s centered and level. Use a level to verify proper alignment.
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Mark the Mounting Holes: Use a marker or pen to mark the locations of the mounting holes on the trailer frame.
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Drill the Pilot Holes (If Necessary): If your trailer frame doesn’t already have pre-drilled mounting holes, use a center punch to create a starting point for drilling. Drill pilot holes through the frame using the appropriate size drill bit.
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Attach the Jack: Align the jack with the mounting holes and insert the bolts. Tighten the bolts by hand initially.
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Torque the Bolts: Use a torque wrench to tighten the bolts to the manufacturer’s specified torque. This step is critical for ensuring a secure and safe installation.
Weld-On Installation (For Experienced Welders Only)
Caution: Welding requires specialized skills and equipment. If you’re not experienced in welding, consult a professional welder.
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Position the Jack: Align the jack on the trailer frame, ensuring it’s centered and level. Use a level to verify proper alignment.
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Tack Weld the Jack: Use a welder to tack weld the jack to the trailer frame. This will hold the jack in place while you complete the welding process.
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Weld the Jack: Use a welder to fully weld the jack to the trailer frame. Ensure a strong and consistent weld around the entire perimeter of the jack’s mounting plate.
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Cool and Inspect: Allow the weld to cool completely. Inspect the weld for any cracks or imperfections. If necessary, grind down any sharp edges.
Final Adjustments and Lubrication
After installation, test the jack by extending and retracting it several times. Ensure it operates smoothly and without any binding or resistance.
Lubricate the jack’s moving parts with grease using a grease gun. This will help prevent corrosion and ensure smooth operation.
Frequently Asked Questions (FAQs)
1. What is the benefit of a swing back trailer jack?
Swing back trailer jacks provide increased ground clearance and prevent damage when the trailer is being towed, especially over uneven terrain. They also offer a cleaner look by tucking the jack away when not in use.
2. Can I install a swing back jack on any trailer?
Generally, yes, but it depends on the trailer frame type and available space. Certain trailer designs might not be compatible due to frame shape or obstructions.
3. How do I determine the correct weight capacity for my trailer jack?
The jack’s weight capacity should exceed your trailer’s GVWR (Gross Vehicle Weight Rating). Always err on the side of caution and choose a jack with a higher capacity than your trailer’s GVWR.
4. What tools do I absolutely need for this installation?
At minimum, you’ll need a wrench set, socket set, measuring tape, drill (if needed), safety glasses, and gloves. A torque wrench is highly recommended for proper bolt tightening.
5. Do I need to weld a swing back trailer jack, or can I bolt it on?
Many swing back trailer jacks can be bolted on, but some models require welding for secure attachment, especially for heavier trailers or those used in demanding conditions.
6. How do I find the correct torque specifications for the mounting bolts?
The torque specifications are typically included in the jack’s instruction manual. If not, contact the manufacturer or a qualified mechanic.
7. What type of grease should I use to lubricate the jack?
Use a general-purpose automotive grease specifically designed for lubricating moving parts.
8. How often should I lubricate my swing back trailer jack?
Regular lubrication is key. Inspect and lubricate the jack every few months, or more frequently if you use your trailer often or in harsh conditions.
9. What if my trailer frame is rusted?
Address the rust before installation. Clean the area thoroughly with a wire brush and apply a rust-inhibiting primer. If the rust is severe, consult a professional for frame repair or replacement.
10. Is it safe to weld a jack onto a painted trailer frame?
No, you should remove the paint from the area where you will be welding to ensure a strong and clean weld.
11. What should I do if the jack doesn’t swing back smoothly?
Check for any obstructions or binding points. Lubricate the pivot points and ensure the jack is properly aligned. If the problem persists, consult the manufacturer.
12. What are the potential dangers of an improperly installed trailer jack?
An improperly installed jack can fail under load, leading to trailer instability, potential damage to the trailer and tow vehicle, and serious injury.