If you own a 1999 Jeep Grand Cherokee Laredo, maintaining the front suspension is critical for ride quality, handling, and safety. Over time, bushings wear, ball joints loosen, and shocks lose their damping ability. This guide covers the essential front suspension parts for the WJ generation Grand Cherokee (1999-2004), focusing on the Laredo trim with the 4.0L or 5.2L engine. Whether you are planning a DIY repair or want to understand what a mechanic recommends, this article provides clear, actionable information.
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KAX Front End Suspension Kit for J-ee-p Grand Cherokee 99 00 01 02 03 04, Upper & Lower Control Arms
Understanding the Front Suspension System
The 1999 Grand Cherokee Laredo uses a front independent suspension with upper and lower control arms, coil springs, and a stabilizer bar. Unlike older solid-axle designs, this setup offers better on-road comfort but has more moving parts that can fail. The front suspension components work together to absorb bumps, keep the tires in contact with the road, and allow steering. Key components include:
- Upper and lower control arms with ball joints and bushings
- Strut assemblies (shock absorber and coil spring combined in some designs)
- Stabilizer bar (sway bar) and end links
- Steering knuckle and tie rod ends
- Hub and bearing assembly (if equipped with ABS)
Most 1999 Grand Cherokee Laredos came with the Quadra-Trac or Selec-Trac four-wheel-drive system, so front differential and axle shafts are also part of the front driveline but are not strictly suspension parts. This article focuses on the parts that control wheel movement and damping.
Common Front Suspension Parts for 1999 Grand Cherokee Laredo
When replacing front suspension parts, it is common to work in pairs (both sides) to maintain balanced handling. Here are the parts you are most likely to need:
Upper and Lower Control Arms
Control arms connect the frame to the steering knuckle and allow the wheel to move up and down. The 1999 Grand Cherokee Laredo has two upper and two lower control arms (one each side). The lower arms are often the first to wear because they carry more weight. Each arm has a ball joint at the knuckle end and bushings at the frame end. Replace the entire arm if the ball joint is loose or the bushings are cracked. Aftermarket options include stamped steel (OEM style) and forged aluminum (lighter, stronger).
Strut Assemblies and Coil Springs
Unlike some vehicles, the 1999 Grand Cherokee Laredo uses separate coil springs and shock absorbers in the front. The spring sits on the lower control arm, and the shock mounts between the frame and lower arm. Many aftermarket brands sell “quick struts” that combine the shock, spring, and mount for easier installation. However, the Grand Cherokee does not use a traditional McPherson strut; it is a short-long arm (SLA) suspension with separate shocks. Make sure you buy the correct shock absorber: Monroe, KYB, and Rancho offer direct fit replacements. Rear springs are different—double-check your model.
Ball Joints
Ball joints are critical for steering and suspension movement. The upper ball joints are smaller and wear faster. If you hear clunking over bumps or the steering feels loose, check the ball joints. Many control arms come with pre-installed ball joints, which is often more cost-effective than pressing in new ones. If you are replacing just the ball joint, ensure the new joint is greaseable for longer life.
Stabilizer Bar and End Links
The stabilizer bar reduces body roll during cornering. End links connect the bar to the lower control arms. Worn end links cause clunking over bumps and when turning. Replace both end links at the same time. The bushings that mount the stabilizer bar to the frame also wear; consider replacing them if the bar is loose.
Tie Rod Ends
Tie rod ends connect the steering rack to the steering knuckle. Worn tie rods cause wandering steering and uneven tire wear. Outer tie rod ends are common wear items. Always get an alignment after replacing tie rods.
Sway Bar Bushings and Brackets
These are inexpensive but often overlooked. If your Jeep sways excessively or you hear rubber creaking, replacing the sway bar bushings can restore stiffness.
OEM vs Aftermarket: Which Should You Choose?
For critical suspension parts, quality matters. Original Equipment (Mopar) parts are designed to last the life of the vehicle but are more expensive. Aftermarket brands like Moog, AC Delco, and Mevotech offer improved designs with better bushings and greasable joints. Moog’s “Problem Solver” line includes upgraded materials. For daily driving, quality aftermarket parts are perfectly fine. If you plan to off-road or tow, consider heavy-duty options like Skyjacker or Rough Country, but note they may raise ride height.
Signs Your Front Suspension Needs Replacement
Look for these common symptoms:
- Clunking or rattling noises over bumps
- Drifting or wandering while driving straight
- Uneven tire wear (cupping or feathering)
- Steering wheel vibration
- Excessive body lean in turns
- Front-end sagging (vehicle sits lower on one side)
If you notice any of these, inspect the suspension components. A simple push-down test on each corner can reveal weak shocks. Use a pry bar to check ball joints and tie rods for play.
How to Choose the Right Parts
When ordering parts for your 1999 Jeep Grand Cherokee Laredo, confirm your engine and drivetrain because some parts differ between 4.0L and 5.2L. Also check if you have Quadra-Trac or Selec-Trac—it affects the front axle disconnect mechanism but not the suspension itself. Always verify part numbers against the vehicle’s VIN or a trusted retailer’s fitment guide. For control arms, look for those with polyurethane or graphite-impregnated bushings for longer life.
Recommended Brands
- Moog: Known for robust ball joints and control arms with grease fittings.
- KYB: Excellent shock absorbers; the Excel-G line is OEM-quality.
- Monroe: Affordable shocks and struts; the OESpectrum series is a good upgrade.
- Mevotech: Offers budget-friendly control arms with improved bushings.
- Mopar: If you want exact replacement, but be prepared for higher cost.
Avoid no-name brands with uncoated steel or cheap rubber bushings; they often fail within a year.
Final Recommendation
For most 1999 Jeep Grand Cherokee Laredo owners, a practical approach is to replace the front lower control arms (with ball joints) and shocks first, as these wear fastest. Pair with new tie rod ends and stabilizer bar end links if they show play. Use Moog or Mevotech for arms, and KYB or Monroe for shocks. Always get a wheel alignment after any suspension work. If you are unsure, consult a trusted mechanic who knows Jeep WJs. Investing in quality parts now will save you from alignment issues and premature tire wear later.
Remember, the front suspension of your Grand Cherokee is a system: replacing just one worn part can reveal other weak points. Plan to replace components in pairs—both left and right—to maintain even handling. With proper maintenance, your 1999 Grand Cherokee Laredo will continue to ride smooth for many miles.