EZGO RXV Rear Suspension Parts: A Complete Guide to Upgrades and Replacements

Maintaining or upgrading the rear suspension of your EZGO RXV golf cart can dramatically improve ride quality, handling, and load capacity. Whether you're replacing worn components or customizing for off-road use, understanding the specific parts and their functions is essential. This guide covers everything from OEM replacements to performance upgrades, helping you make informed decisions.

Understanding the EZGO RXV Rear Suspension System

The EZGO RXV (2008 and newer models) uses a coil-over shock absorber setup in the rear. Unlike leaf spring designs found on older carts, the RXV features a four-link rear suspension with independent rear springs and shocks. Key components include:

• Rear Shock Absorbers: These dampen vertical movement and control rebound. OEM shocks are adequate for paved surfaces, but aftermarket options offer better damping for heavier loads or rough terrain.
• Rear Coil Springs: They support the vehicle’s weight and absorb impacts. Springs are rated by wire thickness and free length. Stock springs may sag over time, especially if you carry passengers or cargo.
• Bushings and Mounting Hardware: Rubber or polyurethane bushings attach the shock and spring assemblies to the frame and axle. Worn bushings cause clunking and imprecise handling.
• Rear Lift Kit Components (if upgrading): If you want larger tires or more ground clearance, a lift kit includes extended shackles, blocks, and longer shocks/springs.
• Sway Bar (Anti-roll bar): Some RXV models have a rear sway bar to reduce body roll. Upgraded sway bars or bushings can improve cornering stability.

Common Signs of Worn Rear Suspension Parts

Recognizing symptoms early can prevent further damage and keep your cart safe. Look for:

• Excessive bouncing or bottoming out: Worn shocks or sagging springs lose damping ability.
• Uneven tire wear: Usually indicates misalignment due to worn bushings or collapsed springs.
• Noises over bumps: Clunks or squeaks from the rear often point to loose or dry bushings, or a broken shock.
• Rear end sagging: Visibly lower ride height on one side or both signals weak springs.
• Poor handling: Drifting or wandering at speed suggests loose control arm bushings or a failing sway bar link.

OEM vs. Aftermarket Rear Suspension Parts

OEM Replacement Parts

Original equipment manufacturer (OEM) parts from EZGO or authorized dealers are guaranteed to fit and perform like stock. They are ideal if you want to restore factory ride quality and don’t need extra load capacity. OEM shocks and springs are generally affordable and reliable for standard use. However, they may not hold up well under heavy loads or off-road conditions.

Aftermarket Performance Upgrades

Aftermarket brands like Jakes, Madjax, and Alltrax (among others) offer upgraded components that improve durability, adjustability, and ride comfort. Common upgrades include:

• Heavy-duty shocks: With thicker oil and stronger valving for better damping.
• Progressive or variable-rate springs: These stiffen under compression to prevent bottoming out while maintaining comfort over small bumps.
• Polyurethane bushings: More durable than rubber, they reduce flex and improve steering response.
• Complete shock and spring assemblies: Pre-assembled units simplify installation and ensure compatibility.

When to choose aftermarket: If you frequently carry heavy loads, drive on rough terrain, or want to lift your cart for larger tires, aftermarket parts are worth the investment. For occasional neighborhood cruising, OEM parts are sufficient.

Rear Suspension Lift Kits for EZGO RXV

If you’re considering larger tires (up to 23 or 25 inches) or simply want more ground clearance, a rear suspension lift kit is necessary. Most RXV lift kits fall into two categories:

• Spindle lift kits: These use extended spindles and do not alter the rear suspension geometry significantly. Simple to install but may affect steering feel.
• Long-arm or A-arm lift kits: These replace control arms and often include new shocks and springs. They provide greater articulation and a smoother ride but are more complex to install.

For the rear, a typical lift kit includes:

• Extended rear shock mounts or brackets
• Longer coil springs or shock extensions
• New control arms (if required)
• Axle drop brackets (for some designs)

Important: Always match front and rear lift heights. Mismatched lifts cause handling issues and driveline stress. Also, check that your brake lines and cables are long enough after lifting.

Step-by-Step: Replacing Rear Shocks and Springs

While not a full installation guide, here are the general steps for replacing rear shocks and springs on an EZGO RXV. Always consult the specific product instructions.

1. Safety first: Place the cart on jack stands, remove the key, and disconnect the battery.
2. Remove the rear wheels for easier access.
3. Support the axle with a floor jack to relieve tension on the suspension.
4. Remove the upper and lower shock mounting bolts. On RXV models, the upper mount is usually at the frame rail; the lower mount is on the axle housing.
5. Compress the shock (if necessary) to remove it. Coil-over assemblies may come out without compression.
6. Inspect and replace bushings if they are worn. Polyurethane bushings are a popular upgrade.
7. Install the new shock/spring assembly in the reverse order. Torque bolts to manufacturer specifications.
8. Repeat on the other side.
9. Lower the cart and check ride height. Test drive slowly and listen for noises.

Pro tip: Replace both rear shocks and springs at the same time, even if only one appears worn. This ensures even handling and prevents premature failure of the new part.

Choosing the Right Parts: Key Considerations

Load Capacity

Standard EZGO RXV rear suspension is rated for about 800–1000 lbs total weight (passengers + cargo). If you exceed that, upgrade to heavy-duty springs. Look for spring rates around 250–300 lbs/in for moderate hauling; 350+ for severe use.

Ride Height

Stock ride height is roughly 8–10 inches at the rear. Lift kits raise it 2–4 inches or more. Consider what tire size you plan to run. A 4-inch lift typically fits 22–23 inch tires; 6-inch lifts fit 25-inch tires.

Terrain

For smooth pavement, OEM shocks are fine. For trails, consider gas-charged shocks (like nitrogen-filled) that resist fade and provide consistent damping.

Budget

OEM shocks and springs cost about $30–$50 each. Aftermarket heavy-duty sets range from $60 to $150 per side. Lift kits start around $200 and go up to $600 for complete systems.

Frequently Asked Questions

Can I mix OEM and aftermarket components? Yes, but it’s best to match pairs (both rear shocks from the same brand/type) to avoid imbalance.

How long do rear suspension parts last? With normal use, shocks and springs last 3–5 years. Bushings may wear sooner if exposed to dirt and moisture.

Will upgrading rear suspension affect warranty? If you install non-OEM parts, any damage caused by those parts may not be covered. Check your warranty terms.

Final Recommendation

For most EZGO RXV owners, replacing worn OEM shocks with heavy-duty aftermarket units and upgrading to polyurethane bushings provides the best balance of cost, comfort, and durability. If you need to carry heavy loads or want a lifted look, invest in a complete lift kit from a reputable manufacturer like Jakes or Madjax. Always buy parts specifically designed for the RXV model to ensure easy installation and proper fit. Inspect your rear suspension at least once a year, and replace any sagging or leaking components promptly. With the right parts, your RXV will ride like new for years to come.