Nissan Altima Rear Suspension Parts: A Complete Buying Guide

The rear suspension on your Nissan Altima plays a critical role in ride comfort, handling, and tire wear. Over time, bushings, shocks, springs, and other components wear out. Knowing which parts need attention and how to choose quality replacements can save you time and money. This guide covers the essential rear suspension parts for the Altima (model years 2007-2018, but applicable to other generations with similar setups) and offers practical advice for buying.

Understanding Your Altima’s Rear Suspension Setup

The Nissan Altima has used a multi-link independent rear suspension for many years, especially in the 4th generation (2007-2012) and 5th generation (2013-2018) models. This design provides a balance of comfort and stability. Key components include:

Rear Shocks or Struts

Most Altimas have separate rear shocks (not struts) because the rear suspension uses a separate coil spring and shock. Some models with sport suspension may have monotube shocks. The shock absorber controls rebound and compression damping. Worn shocks cause bouncing, nose diving under braking, and vague handling.

When replacing, consider OEM-equivalent or aftermarket options like KYB or Monroe. For improved handling, Bilstein offers high-performance shocks. Always replace shocks in pairs (both rear).

Rear Springs

Coil springs support the vehicle’s weight and maintain ride height. Over time, springs can sag, leading to a lower rear end, uneven tire wear, and poor ride quality. If you notice the rear sitting lower than the front, or if the car bounces excessively over bumps, springs may be worn.

OEM springs are fine for standard use. For towing or load leveling, consider variable-rate springs or air assist systems. Avoid cheap generic springs that may not match the Altima’s specifications.

Rear Control Arms

The multi-link rear suspension uses multiple control arms (upper and lower) to locate the rear axle. Common arms include:

• Upper control arms: connect the knuckle to the subframe. Worn bushings cause rear-end wander and clunking.
• Lower control arms: support the knuckle and coil spring. They take most of the load.
• Trailing arms: control longitudinal movement.

Control arms should be checked for bent or cracked metal, and especially for deteriorated rubber bushings. Aftermarket arms with polyurethane bushings can reduce flex but may increase noise and vibration. For daily driving, OEM-style rubber bushings are recommended.

Rear Sway Bar (Stabilizer Bar) and End Links

The sway bar reduces body roll during cornering. Its end links connect the bar to the control arms. Worn end links cause clunking noises on bumps and during turns. The sway bar itself rarely fails, but its bushings can crack.

Replacing end links is inexpensive. Moog and Mevotech are popular brands. Consider upgrading to a thicker sway bar for sportier handling, but know that it will stiffen the ride.

Rear Subframe Bushings

These large bushings mount the rear subframe to the car’s body. They isolate road noise and vibration. Worn subframe bushings cause vague rear-end feel and increased cabin noise. Replacing them is labor-intensive but can dramatically improve ride quality. Look for OEM or high-durometer polyurethane for tighter response.

Signs Your Rear Suspension Needs Attention

• Clunking or rattling from the rear, especially on uneven roads.
• Excessive bouncing after hitting a bump.
• Rear end sagging or uneven stance.
• Uneven tire wear (cupping or scalloping on rear tires).
• Poor handling: the car feels loose or wanders on the highway.
• Squeaking or creaking when going over bumps (often bushings).

If you notice any of these, inspect the specific components. A quick visual check: look for oil leaks on shocks, cracked rubber bushings, bent arms, or popped sway bar end links.

Original Equipment vs. Aftermarket vs. Performance Parts

When buying rear suspension parts, you have three routes:

OEM (Original Equipment Manufacturer)

• Part: same as what came from the factory.
• Pros: guaranteed fit, durability, and ride quality.
• Cons: higher cost than aftermarket.
• Best for: owners who want a stock feel and long service life.

Aftermarket Standard Replacements

• Brands like Monroe, KYB, Moog, TRW.
• Pros: good quality at a lower price.
• Cons: some may not match OEM exactly in damping or durability.
• Best for: cost-conscious drivers who still want reliable performance.

Performance Upgrade (e.g., Eibach, Bilstein, Polyurethane Bushings)

• Pros: improved handling, lower ride height, reduced body roll.
• Cons: firmer ride, potential noise, often higher cost.
• Best for: enthusiasts or those who autocross or track their Altima.

For most Altima owners, OEM or quality aftermarket standard replacements are the best choice. Only upgrade if you accept a stiffer ride.

Buying Tips for Rear Suspension Parts

1. Check Compatibility by Year: Suspension parts can vary by model year. Always verify using your VIN or exact model year and trim.
2. Buy Complete Kits: Some suppliers offer kits that include shocks, springs, and mounting hardware. This saves time and ensures matching parts.
3. Don’t Forget Hardware: Many bolts, nuts, and isolators are single-use or often rusted. Replace them to avoid future issues.
4. Consider Load-Leveling: If you frequently carry heavy loads or tow, explore air shocks or load-leveling springs.
5. Read the Return Policy: Suspension parts often require correct fitment. Buy from stores with flexible return policies.

Installation Considerations

Replacing rear suspension parts can be a DIY job if you have experience and proper tools (jack stands, impact wrench, spring compressors for springs). However, for spring replacement or subframe bushing work, professional installation is recommended. A shop typically charges 1-3 hours of labor per side depending on complexity.

After replacement, you should get a wheel alignment, especially if you replaced control arms or springs. An alignment ensures proper tire wear and handling.

Final Recommendation

For the most common issue, worn rear shocks and end links, go with KYB Excel-G shocks and Moog end links. They offer a balance of cost and quality. If you need a full overhaul due to high mileage, consider a complete set from a reputable brand like Monroe or even OEM parts from a Nissan dealer or online parts store. Always replace parts in pairs to maintain balance. Your Altima will ride smooth again, and you’ll avoid uneven tire wear and safety hazards.

Remember, a well-maintained rear suspension not only improves comfort but also keeps your car stable during emergency maneuvers. Invest in quality parts, and your Altima will thank you for years to come.