Ah, the venerable Jeep Cherokee XJ. It’s a legend for a reason: rugged, capable, and endlessly customizable. But what if you love your XJ’s go-anywhere spirit, yet yearn for the open bed utility of a pickup truck?
You’re not alone. Many off-road enthusiasts and DIY mechanics face this dilemma. The desire for a compact, trail-ready truck with the XJ’s legendary drivetrain often leads to one incredible solution: the jeep cherokee xj truck conversion.
Here at FatBoysOffroad, we understand the allure of a custom build. This isn’t just a modification; it’s a transformation. We’ll guide you through everything you need to know, from initial planning to cutting metal and reinforcing your new pickup. Get ready to turn heads and haul gear like never before.
This comprehensive guide will walk you through the entire process, covering crucial steps, necessary tools, and expert tips to ensure your XJ pickup is not just functional, but also safe and trail-ready.
Why a Jeep Cherokee XJ Truck Conversion? The Ultimate Utility Upgrade
The XJ is a fantastic SUV, but its enclosed cargo area can be limiting for certain tasks. Hauling dirty recovery gear, lumber for a project, or even just camping supplies for a weekend adventure often requires more space and easier access than a traditional SUV offers.
Converting your XJ into a truck addresses these limitations head-on. You gain an open bed, often with a shorter wheelbase for improved maneuverability on tight trails.
The finished product is a unique, capable, and incredibly versatile vehicle. Imagine the possibilities: a compact pickup that retains the XJ’s bulletproof 4×4 system, ready for anything you throw at it, from rock crawling to home improvement projects.
Advantages of an XJ Pickup
- Increased Cargo Versatility: An open bed is ideal for dirty, bulky, or tall items that won’t fit inside an SUV.
- Improved Off-Road Clearance (Potentially): A shorter rear overhang can mean better departure angles on the trail.
- Unique Aesthetic: Stand out from the crowd with a custom build that’s both practical and cool.
- Retain XJ Drivetrain: Keep the reliable inline-six engine and robust axles you already trust.
Planning Your Jeep Cherokee XJ Truck Conversion Project
Before you even think about grabbing a saw, meticulous planning is paramount. This isn’t a weekend job; it’s a significant undertaking requiring careful consideration of your skills, budget, and local regulations.
First, consider your end goal. Do you want a bare-bones trail rig, or a more refined “comanche-style” pickup? This will influence your design choices, from bed length to interior finish.
Research local laws regarding vehicle modifications. Some areas have strict rules about frame alteration or bed construction. Always check with your local DMV or equivalent authority.
Budgeting for Your Custom XJ Pickup
A jeep cherokee xj truck conversion can range wildly in cost. A basic chop and cap might be relatively inexpensive if you do all the work yourself and scrounge for materials.
However, if you’re aiming for a fully custom bed, reinforced chassis, new paint, and professional welding, costs can quickly escalate. Factor in tools, materials (steel, bedliner, sealant), and potential professional help for critical steps like welding or roll cage fabrication.
Don’t forget the unexpected. Always set aside an extra 15-20% of your budget for unforeseen challenges or parts you didn’t anticipate needing.
Donor Vehicle Selection and Inspection
Choosing the right XJ is crucial. Look for a solid, rust-free chassis, especially in the rocker panels and floorboards. While you’ll be cutting the rear, a strong foundation is still key.
Inspect the drivetrain thoroughly. The engine, transmission, transfer case, and axles should all be in good working order. Any major mechanical issues should ideally be addressed before you start the conversion.
A two-door XJ can sometimes be an easier starting point due to the slightly longer front doors and different B-pillar structure, but a four-door works perfectly fine too.
Essential Tools and Materials for the XJ Chop
This project requires more than just basic hand tools. Be prepared with the right equipment to ensure safety and efficiency.
Required Tools
- Angle Grinder: For cutting metal, grinding welds, and smoothing edges. Have plenty of cutting and grinding wheels.
- Reciprocating Saw (Sawzall): Excellent for initial rough cuts through sheet metal.
- Welder (MIG or TIG): Essential for reinforcing the unibody and fabricating the bed structure. A 220V MIG welder is common for DIYers.
- Plasma Cutter (Optional but Recommended): Speeds up precise metal cutting significantly.
- Measuring Tape, Straight Edge, Chalk Line: For accurate marking and cutting.
- Personal Protective Equipment (PPE): Always wear safety glasses, hearing protection, gloves, and a welding helmet.
- Jack Stands and Floor Jack: To safely lift and support the vehicle.
- Body Hammer and Dolly Set: For shaping and smoothing sheet metal.
- Air Compressor and Air Tools: Die grinder, cut-off wheel, etc., can be very useful.
Key Materials
- Steel Tubing/Plate: For chassis reinforcement, bed frame, and bulkhead. Common sizes include 1.5″ or 2″ square tubing.
- Sheet Metal: For patching, bed sides, and bulkhead skin.
- Welding Wire, Gas, and Electrodes: Match to your welder and material.
- Grinding Discs and Sanding Pads: For finishing work.
- Rust Primer and Paint: To protect all newly exposed and fabricated metal.
- Body Filler (Optional): For smoothing out imperfections.
- Sealant/Caulk: To waterproof seams.
- Bedliner: For protecting the new truck bed (spray-in or roll-on).
Step-by-Step Guide to Your Jeep Cherokee XJ Truck Conversion
This is where the real work begins. We’ll break down the process into manageable stages, but remember, precision and safety are key at every turn.
1. Prepare the Vehicle and Mark Your Cuts
First, strip out the rear interior: seats, carpet, headliner, and trim. Disconnect the battery. Remove the rear hatch and any associated wiring.
Now, carefully measure and mark your cut lines. This is the most critical step. Common practice is to cut just behind the B-pillar (the pillar between the front and rear doors on a 4-door) or the C-pillar (the pillar behind the rear doors).
Decide on your desired bed length. Use masking tape, a straight edge, and a chalk line to create clear, precise cut lines. Double-check all measurements before cutting. Remember, you can always cut more, but you can’t put metal back easily!
2. The Initial Cut: Chopping the Rear
With your lines marked and safety gear on, begin cutting. A reciprocating saw with a metal blade is good for the initial rough cuts through the sheet metal. For cleaner, more controlled cuts, an angle grinder with a thin cut-off wheel or a plasma cutter will yield better results.
Cut slowly and carefully, following your marked lines. Be aware of any wiring or fuel lines that might be hidden within the body panels. On many XJs, the fuel tank is located under the rear cargo area, so exercise extreme caution when cutting near the floor pan.
Once the main body is separated, you’ll be left with the front half of your XJ and a pile of sheet metal. Clean up all the cut edges with a grinder to remove burrs and sharp points.
3. Reinforcing the Unibody and Chassis
The XJ’s unibody relies on the full body structure for rigidity. When you chop off the rear, you remove a significant portion of that structural integrity. Reinforcement is non-negotiable for safety and durability, especially for off-road use.
Fabricate a rear bulkhead from steel tubing and sheet metal. This will form the back wall of your cab. Weld it securely to the remaining unibody structure, tying into the B-pillars or C-pillars.
Consider adding frame stiffeners or rocker panel guards that extend from the front to the newly cut rear. These will help prevent flex and twisting, especially if you plan on serious off-roading or carrying heavy loads.
Reinforcing the Chassis and Building Your Bed
With the cab cut and reinforced, the next major phase is constructing the truck bed and ensuring the structural integrity of your new pickup.
Fabricating the Rear Bulkhead and Cab Back
The bulkhead is critical for sealing the cab and providing structural support. Use steel tubing (e.g., 1.5″ or 2″ square tube) to create a sturdy frame. Weld this frame securely to the remaining body structure. Then, skin the frame with sheet metal, welding it in place.
Ensure a good seal where the bulkhead meets the cab floor and sides. Use seam sealer to prevent water and dust intrusion. You can add a window to the bulkhead for rear visibility, or keep it solid for maximum structural strength.
Designing and Constructing the Truck Bed
Your truck bed can be as simple or complex as you like. Many DIYers build a rectangular frame from steel tubing, extending back from the new bulkhead.
The bed floor can be fabricated from sheet metal, diamond plate, or even wood, securely bolted or welded to the frame. The sides of the bed can be formed from sheet metal, or you can integrate pre-fabricated truck bed sides from another vehicle if you’re skilled in fabrication.
Consider how you’ll attach a tailgate. Many custom builds adapt tailgates from smaller pickups like a Ford Ranger or Chevrolet S-10, or fabricate a custom one.
Fuel Tank Relocation and Protection
Since the original fuel tank was likely under the rear cargo area, you’ll need to relocate it. Common options include:
- Behind the Cab: Mount a fuel cell directly behind the new bulkhead. This is a popular choice for protection.
- Under the Bed: Fabricate a new crossmember and mounting system to place the tank higher and further forward under the new bed.
Ensure the new fuel tank location is secure, protected from impacts, and properly vented. This is a critical safety step and may require professional assistance if you’re unsure.
Wiring, Finishing Touches, and Off-Road Readiness
Once the major fabrication is done, it’s time to tie up loose ends, make it look good, and ensure it’s ready for the trail.
Electrical System Rerouting
You’ll have cut through a significant amount of wiring when chopping the rear. This includes taillight wiring, fuel pump wiring, and potentially rear window defroster or wiper circuits.
Carefully identify and reroute necessary wiring. Extend the taillight harness to the new rear of your bed. Ensure all connections are soldered, heat-shrunk, and protected from the elements. Test all lights and electrical components thoroughly before driving.
Consider adding a new wiring harness for any additional accessories you plan for your bed, like auxiliary lighting or power outlets.
Aesthetics and Weatherproofing
Finish all welds, grind them smooth, and apply rust-inhibiting primer to all exposed metal. Paint your new bed structure to match or contrast with your XJ’s existing paint.
Apply a durable bedliner (spray-in or roll-on) to the interior of your bed to protect it from scratches, dents, and corrosion. Use automotive-grade seam sealer on all joints and seams to prevent water from entering the cab or rusting the bed.
Consider interior trim for the new bulkhead to give it a factory-finished look. Sound deadening material can also help reduce road noise in the new, more open cab.
Final Checks and Off-Road Readiness
Before hitting the road or the trails, perform a comprehensive inspection:
- Structural Integrity: Visually inspect all welds and reinforcements. Look for any signs of stress or cracking.
- Brakes and Suspension: Ensure nothing was compromised during the build. Check brake lines, suspension components, and tire clearances.
- Fuel System: Double-check all fuel line connections for leaks and proper routing.
- Electrical: Test all lights (headlights, taillights, brake lights, turn signals), horn, and any new accessories.
- Safety: Consider adding a roll cage, especially if you plan on aggressive off-roading. This provides crucial occupant protection in a rollover.
- Weight Distribution: Be aware that the weight distribution of your XJ has changed. Drive cautiously until you get a feel for its new handling characteristics.
Common Challenges and Pro Tips for Your DIY Pickup
A jeep cherokee xj truck conversion is a rewarding project, but it comes with its own set of hurdles. Anticipating these can save you time and frustration.
Navigating Unibody Flex
The XJ’s unibody is designed to flex as a single unit. Removing the rear section can lead to increased chassis flex. This is why reinforcement is so crucial. Don’t skimp on frame stiffeners, a strong bulkhead, and potentially a cage that ties into the frame.
If you notice excessive flex, especially off-road, revisit your reinforcement. A cracked windshield or doors that don’t close properly can be signs of inadequate stiffness.
Wiring Headaches
Modern vehicles have complex wiring harnesses. Label everything as you disconnect it. Take photos. Use high-quality connectors and heat shrink tubing for all splices. A multimeter is your best friend for tracing wires and checking continuity.
Dealing with Rust
Any exposed metal, especially in a build that will see off-road action, is prone to rust. Use rust-inhibiting primers, paints, and seam sealers religiously. Consider internal frame coatings for any box sections you create.
Pro Tips from the Trail
- Measure Thrice, Cut Once: This cannot be stressed enough. Mistakes with a grinder are costly.
- Patience is a Virtue: Don’t rush. Take breaks. Step back and assess your work.
- Seek Expert Help: If you’re not confident in your welding or fabrication skills, find a local professional to help with critical structural components. It’s an investment in safety.
- Documentation: Take photos and notes throughout the process. This helps with troubleshooting and can be valuable if you ever decide to sell the vehicle.
- Test Fit Everything: Before final welding or painting, temporarily fit components to ensure everything aligns correctly.
Frequently Asked Questions About XJ Truck Conversions
Is a Jeep Cherokee XJ truck conversion street legal?
Street legality varies significantly by state and country. In many places, as long as the vehicle passes safety inspections and meets structural integrity requirements, it can be legal. Always check with your local Department of Motor Vehicles or equivalent authority before starting your project to understand specific regulations regarding modified vehicles, frame alterations, and bed construction.
How much does an XJ pickup conversion typically cost?
The cost can range from a few hundred dollars for a very basic DIY chop with scavenged materials to several thousand dollars for a professional-level build with custom fabrication, new components, and professional welding. Factors include your skill level, tools you already own, materials chosen, and whether you hire out any part of the work.
How long does a Jeep Cherokee XJ truck conversion take?
For a dedicated DIY mechanic working weekends, a basic chop and bed fabrication might take 1-3 months. A more involved build with extensive reinforcement, custom bed work, and finishing touches could easily take 6 months to a year or more. It’s a marathon, not a sprint.
Does an XJ truck conversion affect off-road performance?
Yes, significantly. A shorter wheelbase can improve maneuverability and departure angles, making it better for tight trails and steep obstacles. However, removing the rear structure can also reduce torsional rigidity, requiring substantial reinforcement. The new weight distribution will also change handling characteristics, both on and off-road.
What are the biggest challenges of converting an XJ to a truck?
The biggest challenges often involve maintaining structural integrity of the unibody after cutting, properly relocating the fuel tank for safety, extending or rerouting the electrical system, and ensuring a professional, weather-sealed finish. Welding and metal fabrication skills are paramount for a safe and durable conversion.
Conclusion: Your Custom XJ Awaits!
A jeep cherokee xj truck conversion is more than just cutting metal; it’s a testament to ingenuity, skill, and the enduring spirit of the XJ. You’re not just building a vehicle; you’re crafting a unique tool tailored to your exact needs, whether that’s hauling gear to the campsite or tackling the toughest trails.
This project demands patience, attention to detail, and a strong commitment to safety. But the reward? A one-of-a-kind XJ pickup that’s as capable as it is distinctive, ready for any adventure you can dream up.
So, plan meticulously, gather your tools, and embark on this incredible journey. The open road—and the open bed—await your custom XJ. Stay safe and stay comfortable!
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