Introduction

Off-road enthusiasts have long recognized the Jeep Cherokee XJ (1984–2001) as one of the most capable and versatile platforms for trail driving. Its unibody construction, solid axles, and compact dimensions make it a favorite for everything from rock crawling to overlanding. Installing a Skyjacker lift kit is one of the most effective ways to unlock the XJ’s true off-road potential. Skyjacker has built a reputation for producing durable, performance-oriented suspension components that improve ground clearance, wheel travel, and ride comfort on rough terrain. This guide provides a comprehensive, step-by-step approach to installing a Skyjacker lift kit on your XJ Cherokee, with detailed instructions, safety tips, and maintenance advice to ensure your suspension upgrade performs reliably for years.

Tools and Materials

Before you begin, gather all necessary tools and the Skyjacker lift kit. Having everything ready helps streamline the installation and prevents unnecessary trips to the hardware store.

  • Skyjacker lift kit (confirm model and lift height for your XJ)
  • Socket set – metric and SAE, with extensions and a breaker bar
  • Wrench set – combination wrenches, including 15mm, 18mm, 21mm
  • Floor jack – 3-ton capacity recommended
  • Jack stands – two pairs (4 total) for maximum stability
  • Torque wrench – for tightening critical fasteners to spec
  • Spring compressor – for safely removing and installing coil springs
  • Pry bar – for aligning suspension components
  • Penetrating oil – such as WD-40 or PB Blaster to loosen rusted bolts
  • Impact wrench (optional but speeds removal)
  • Safety glasses and gloves
  • Shop rags and floor jack pad (to protect frame rails)

Double-check the kit contents against Skyjacker’s inventory sheet. If any parts are missing, contact your supplier before starting.

Safety First

Suspension work involves heavy components and compressed springs. Always follow these safety rules:

  • Work on a level, hard surface. Concrete is ideal; avoid gravel or dirt.
  • Engage the parking brake and chock the rear wheels.
  • Never rely solely on a floor jack to support the vehicle. Always use jack stands rated for the vehicle’s weight.
  • Wear safety glasses at all times to protect against debris and spring clips.
  • Use a spring compressor when removing or installing coil springs. Do not attempt to remove springs without proper compression.
  • Keep hands and tools away from pinch points. Allow the suspension to settle slowly when lowering the vehicle.

If you are unfamiliar with suspension work, consider having an experienced helper or mechanic assist you. Safety cannot be overstated.

Pre-Installation Preparation

Vehicle Preparation

Park the XJ Cherokee on a flat surface. Remove any heavy cargo from the cargo area. Disconnect the negative battery cable to prevent accidental electrical shorts. Note the current ride height by measuring from the center of each wheel arch to the ground – this helps verify lift height after installation.

Workspace Setup

Clear the area around the vehicle. Lay out all tools and organize the Skyjacker kit components. Ensure the floor jack and jack stands are in good working condition. Apply penetrating oil to all suspension bolts you plan to remove, especially those on the lower shock mounts, sway bar links, and spring retainers. Let the oil soak for 15–20 minutes.

Remove Existing Suspension Components

Begin by removing the wheels and tires. Use a floor jack to lift one corner at a time and support the axle with a jack stand. Remove the front wheels first, then the rear. This provides access to the suspension hardware.

  • Front: Remove the front sway bar end links. Then unbolt the lower shock mounts and the upper shock studs. Remove the shocks. Use a spring compressor to compress the coil springs, then remove the spring retainer bolts and extract the springs. Keep the compressor tight until the spring is free.
  • Rear: Remove the rear sway bar links (if equipped). Unbolt the lower shock mounts and the upper shock studs. Remove rear shocks. For leaf spring XJs, unbolt the leaf spring front eye bolt, rear shackle bolts, and any U-bolts securing the axle to the springs. Carefully lower the axle enough to slide the leaf springs out. On models with add-a-leaf kits, you may not need to remove the full leaf pack.

Discard old components that will not be reused, such as worn bushings or damaged fasteners. Skyjacker kits typically include new hardware for critical points.

Front Suspension Lift Installation

Remove Front Shocks and Springs

With the vehicle secured on jack stands and the front axle supported, remove the old front shocks as described. Use the spring compressor to safely extract the old coil springs. Take note of the orientation of the spring isolators – you will reuse them or install new ones provided in the kit.

Install Skyjacker Front Coil Springs

Place the new Skyjacker coil springs into position. Ensure the larger diameter end sits on the lower spring pad and the smaller end fits into the upper spring bucket. Add any provided spring spacers or isolators. Slowly release the spring compressor until the spring is seated. Reinstall the spring retainer bolts and torque to factory specifications (typically 25–35 ft-lbs for the lower retainer).

Install Skyjacker Front Shocks

Attach the new shocks at the top mount. Use a wrench to hold the upper stud while tightening the nut to the torque spec provided in the Skyjacker instructions (usually 40–50 ft-lbs). Then attach the lower shock mount to the axle bracket. Tighten the bolt to 45–60 ft-lbs. Do not over-torque; use a torque wrench for accuracy.

The lift kit may include longer sway bar end links or relocation brackets. Install these according to Skyjacker’s diagram. Tighten the sway bar frame bushings and link bolts to 30–40 ft-lbs. Proper sway bar operation is essential for on-road stability.

Torque Specifications

Below are common torque values for Skyjacker installations on the XJ. Always verify with your specific kit instructions, as fastener sizes may vary.

  • Upper shock mount nut: 40–50 ft-lbs
  • Lower shock bolt: 45–60 ft-lbs
  • Spring retainer bolts: 25–35 ft-lbs
  • Sway bar end link nuts: 30–40 ft-lbs
  • Control arm bolts (if replaced): 70–90 ft-lbs

Rear Suspension Lift Installation

Remove Rear Shocks and Leaf Springs

With the rear axle supported on jack stands, remove the old rear shocks. For leaf spring removal, place a jack under the axle to relieve tension. Unbolt the front eye bolt, rear shackle bolts, and any U-bolts. Carefully lower the axle and slide out the leaf springs. If your Skyjacker kit includes new leaf springs, replace the entire pack. For add-a-leaf or shackle lift, follow the kit-specific steps.

Install Skyjacker Rear Leaf Springs

Position the new leaf springs on the axle. The spring pack’s curvature should face upward. Slide the front eye bolt through the bushing and frame bracket – do not fully tighten yet. Attach the rear shackles to the spring and frame, again leaving bolts snug but not torqued. Install new U-bolts over the axle tubes and tighten gradually in a crisscross pattern to 60–80 ft-lbs. This assures the axle is centered.

Install Skyjacker Rear Shocks

Mount the rear shocks similarly to the front. Secure the upper stud with the provided nut, then attach the lower bolt through the axle shock mount. Torque to specifications (rear shock lower bolt: 45–60 ft-lbs, upper nut: 40–50 ft-lbs). Make sure the shock’s travel does not bottom out at full articulation. Adjust if needed using relocation brackets from the kit.

Reinstall Rear Sway Bar

If your XJ is equipped with a rear sway bar, reinstall with new end links from the Skyjacker kit. Some kits delete the rear sway bar for improved rear articulation – consult your kit instructions. If retaining, torque the links to 30–40 ft-lbs.

Torque Specifications (Rear)

  • Leaf spring eye bolt: 70–90 ft-lbs
  • Rear shackle bolts: 50–70 ft-lbs
  • U-bolts nuts: 60–80 ft-lbs (retorque after 100 miles)
  • Shock mounts: same as front
  • Sway bar link: 30–40 ft-lbs

Post-Installation Checks and Adjustments

Check Ride Height and Level

Lower the vehicle to the ground and roll it back and forth a few feet to settle the suspension. Measure the ride height from the wheel arch centers to the ground. Compare with pre-installation measurements. The lift should be uniform left-to-right and front-to-rear. If one side is higher, inspect spring seating or tighten U-bolts evenly.

Inspect All Fasteners

With the vehicle resting on its own weight, check all nuts and bolts for tightness. Skyjacker recommends retorquing all suspension fasteners after the first 50–100 miles of driving. Mark bolt heads with a paint pen to spot loosening.

Test Suspension Articulation

Carefully cycle the suspension by jacking up one axle corner and checking for binding or contact. Turn the steering full lock and verify no tire rub or shock contact. Adjust bump stops if needed. Skyjacker kits often include extended bump stops – install them now.

Wheel Alignment

Lifting the XJ changes the front suspension geometry. After installation, drive the vehicle to a reputable alignment shop. A front-end alignment (camber, caster, toe) is critical for tire wear and steering response. Expect to adjust the track bar (if included in the kit) to center the axle. Many Skyjacker kits provide a drop bracket for the track bar or a relocation bracket. Do not skip this step – improper alignment can cause dangerous handling.

Break-In Period and Maintenance

After installing the Skyjacker lift kit, drive the XJ gently for the first 500 miles. Avoid heavy off-road use or high-speed maneuvers. During this period, the new springs and bushings will settle. Recheck all hardware at 50 miles, 100 miles, and again at 500 miles. Pay special attention to U-bolt nuts – they often need retorquing after the leaf springs settle. Lubricate any greasable components (like sway bar bushings) with a grease gun. Periodically inspect shocks for leaks and coil springs for sagging.

Troubleshooting Common Issues

Steering Wheel Off-Center

If the steering wheel is tilted while driving straight, the pitman arm or drag link adjustment may be needed. This often occurs after lifting. Visit an alignment specialist to center the steering wheel and adjust the drag link.

Driveline Vibrations

Lifts over 2–3 inches can alter the driveline angle, causing vibrations. Skyjacker kits for the XJ often include transfer case drop spacers or suggest a slip-yoke eliminator (SYE) for taller lifts. If vibrations occur, install the included drop spacers or upgrade to an SYE and double-cardan driveshaft.

Coil Spring Clunking

Noises from the front coil springs usually indicate improper seating or broken isolators. Recheck that the spring is fully seated in the upper bucket and lower pad. Install new isolators if needed. Ensure the spring compressor did not damage the spring during installation.

Rear End Squeaking

Leaf springs can squeak when bushings are dry. Use a silicone-based lubricant on the spring eye bushings. If the new leaf springs lack inter-leaf liners, consider adding graphite powder between leaves.

Performance Expectations and Tips

A properly installed Skyjacker lift kit transforms the XJ Cherokee into a much more capable off-road vehicle. You will gain significant ground clearance, allowing larger tires (typically 31-33 inches depending on lift height) and better approach, departure, and breakover angles. The softer off-road valving in Skyjacker shocks improves articulation over rocks and ruts, while the new springs provide a firmer, more controlled ride on pavement – though some increase in body roll may be noticeable with higher lifts. Pair your lift with quality all-terrain or mud-terrain tires and consider upgrading steering components (like a heavy-duty tie rod) for larger tires. For serious off-road use, add rock sliders and skid plates.

Conclusion

Installing a Skyjacker lift kit on your XJ Cherokee is a rewarding project that dramatically improves off-road performance. By following this detailed guide, paying attention to safety, using the correct tools, and performing thorough post-installation checks, you can ensure your suspension upgrade delivers reliable capability for many trail seasons. Remember to break in the components gently, keep up with maintenance, and always drive responsibly off-road. For further reading, check out Skyjacker’s official website for product specifications, join the North American XJ Association (NAXJA) forum for community advice, and visit Quadratec for quality replacement parts. For general off-road driving techniques, Tread Lightly offers excellent resources on responsible trail use. Enjoy your upgraded XJ and the adventures that await.