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If your Infiniti FX35 feels floaty, bouncy, or noisy over bumps, the right shock absorbers can make a big difference in daily driving comfort and control. Choosing proper replacements matters because shocks determine how your vehicle responds to road irregularities, controls body roll, and maintains tire contact. This guide covers six shortlisted Infiniti FX35 shock absorber options selected for their ride quality, durability, and compatibility with the FX35. Below we explain the evaluation criteria and what to look for so you can pick the option that best matches your driving style and maintenance needs.
Looking for other parts? See all Infiniti FX35 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | TRQ Rear Shock Absorber Set (SBA86121) for Infiniti G35 / Nissan 350Z |  |
| Best Quality Built to a higher standard if you want something more solid | Complete Struts Front Complete Strut Assemblies and Rear Shocks Set for 2003–2008 Infiniti FX35 |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Rear Shock Strut Assembly (Pair) for Infiniti FX35/FX37/FX50/QX70/EX37 |  |
| Most Sold A high-volume bestseller chosen again and again | SHOXTEC Front Pair Complete Strut Assembly for 2006–2007 Infiniti M35 |  |
| Best Value for Money The sweet spot between price and what you get | A-Premium Rear Shock Strut Assembly — 2‑Piece Set for Infiniti FX35/FX45 (2003–2008) |  |
| Best Overall The best all-around choice for most situations | Detroit Axle Rear Shock Absorbers and Sway Bar Links Kit for 2003–2008 Infiniti FX35/FX45 |  |
1. TRQ Rear Shock Absorber Set (SBA86121) for Infiniti G35 / Nissan 350Z
| Auto Part Position | Rear |
|---|---|
| Set Name | Rear Shock Absorber Set |
| Automotive Fit Type | Vehicle Specific Fit |
| Brand | TRQ |
| Manufacturer Part Number | SBA86121 |
This TRQ rear shock absorber set is a direct-fit replacement pair intended to restore rear suspension damping and ride control. It installs in place of worn rear shocks to reduce noise, vibration, and excessive body movement, and is typically used during rear-end suspension refreshes or when worn shocks cause instability. Notable features include vehicle-specific fitment, pre-assembled components for easier installation, and TRQ's large DIY video library to guide the process. In real-world use the shocks often deliver a firmer, more controlled rear end and improved tire contact over rough pavement, making the car feel more planted. Quality and fitment are generally good but inconsistent reports exist: most users find an OEM-like ride and straightforward install while some report one unit arriving defective or slightly different length requiring extra effort to fit. Buyers should expect a replacement-grade shock that improves comfort and handling compared with worn originals but recognize occasional quality-control and fitment variances across units.
Best for: Reliability-focused buyers who prioritize restoring stable, predictable rear suspension behavior and prefer parts that aim to match factory fit and function.
Less Ideal for: Drivers seeking a performance-tuned or significantly softer ride should consider specialty or adjustable shocks instead; those unwilling to deal with potential warranty or replacement steps for a defective unit should look for direct dealer-sourced parts.
- Vehicle-specific direct-fit design simplifies installation and avoids modifications.
- Pre-assembled components and available step-by-step DIY videos reduce installation time for home mechanics.
- Improves rear ride comfort, stability, and tire contact compared with worn shocks.
- Widely used replacement with many positive user reports of OEM-like performance.
- Some buyers report occasional defective units or inconsistent length between pair members.
- A few users experienced a firmer-than-expected ride that may not match all comfort preferences.
Verdict A practical, vehicle-specific rear shock pair that restores control and comfort but can show occasional quality-control or fitment variability.
2. Complete Struts Front Complete Strut Assemblies and Rear Shocks Set for 2003–2008 Infiniti FX35
| Fitment | 2003–2008 Infiniti FX35 |
|---|---|
| Kit quantity | 4 units |
| Position | Front complete struts and rear shock absorbers |
| Spring type | Cold rolled steel coil springs |
| Strut design | Twin-tube with hydraulic oil and nitrogen |
This kit replaces both front struts and rear shocks with ready-to-install, fully assembled components engineered to match factory ride height and damping characteristics for the Infiniti FX35. Installation is straightforward for a mechanic or competent DIYer because the front units come preassembled with coil springs, upper mounts, and isolators so you do not need a spring compressor. The twin-tube struts combine hydraulic oil and nitrogen charge and use vehicle-specific damping valves to restore ride control, while polyurethane isolators reduce noise compared with worn rubber. Cold-rolled steel springs are sized to return the vehicle to factory height. Practical benefits include a quicker suspension refresh, reduced chance of reusing worn parts, and a likely improvement in steering feedback and body control when compared with aged components. Limitations are the mixed owner feedback on ride harshness and the inherent differences between aftermarket and factory parts, so expect small variations in damping feel and plan for a professional wheel alignment after installation.
Best for: Performance-oriented owners looking to restore or sharpen FX35 handling with a factory-height replacement set that prioritizes direct fit and improved control over old, worn suspension parts.
Less Ideal for: Drivers seeking adjustable or race-grade damping or the absolute smoothest luxury ride should consider higher-end monotube or adjustable shock options instead.
- Comes as a complete set of two front assembled struts and two rear shock absorbers for one-stop suspension replacement.
- Front assemblies are prebuilt with springs, upper mounts, and isolators to simplify installation and remove the need to rebuild struts.
- Coil springs and damping components are engineered to match factory ride height and restore handling predictability.
- Polyurethane spring isolators and vehicle-specific top mounts help reduce noise and vibration compared with degraded original components.
- Aftermarket damping can feel firmer or less refined than factory-spec units for some drivers.
- Twin-tube design may not match the thermal or high-performance characteristics of high-end monotube or adjustable shocks.
- Mixed user reports on comfort mean results can vary depending on vehicle condition and driving style.
Verdict A convenient, vehicle-specific four-piece kit that restores ride height and handling for the Infiniti FX35, best suited for drivers who want a direct-fit performance-oriented replacement rather than race-tuned adjustability.
3. A-Premium Rear Shock Strut Assembly (Pair) for Infiniti FX35/FX37/FX50/QX70/EX37
| Auto Part Position | Rear |
|---|---|
| Material | Metal |
| Extended Length | 19.69 Inches |
| Reference Number | 37365 |
This A-Premium rear strut assembly pair replaces the left and right rear shocks on compatible Infiniti models to restore damping and rear ride height. Typical use is direct replacement of worn or damaged rear struts during routine suspension repair or when the rear ride becomes bouncy or unstable. The assembly includes the strut and mount-coded fitment for a bolt-in installation that matches the listed lower and upper mount types, and the seller offers a one-year unlimited-mileage guarantee. Practical benefits are straightforward: it brings back controlled rear damping, is offered as a matched pair for even performance, and is priced for budget-oriented repairs. Important limitations are that this is an aftermarket, economy-oriented part so finish and long-term durability may not match higher-end factory-quality replacements, and it does not include dust shields. Expect basic replacement performance suitable for daily driving rather than upgraded handling or extended longevity under heavy use.
Best for: Budget-conscious owners looking for an affordable, direct replacement to restore everyday rear suspension performance on their Infiniti FX35-focused vehicle.
Less Ideal for: Drivers seeking performance-tuned damping, long-term durability under heavy towing or aggressive driving, or an exact factory-grade match should consider higher-end or factory-quality options.
- Sold as a matched left and right rear pair for balanced damping
- Fitment listed specifically for Infiniti FX35/FX37/FX50/QX70/EX37 model years covered
- Includes upper and lower mount codes to simplify correct fitment
- One-year unlimited-mileage guarantee provides short-term coverage
- Does not include dust shields which some installations may require
- Aftermarket economy construction may wear sooner than premium or factory-quality struts
Verdict A cost-focused, matched rear strut pair that restores everyday ride control on supported Infiniti models but is best for standard driving rather than performance or heavy-duty use.
4. SHOXTEC Front Pair Complete Strut Assembly for 2006–2007 Infiniti M35
| Fitment | 2006 – 2007 Infiniti M35 (excludes X and sport suspension) |
|---|---|
| Position | Front pair |
| Material | Rubber components with rust-resistant coating |
| Manufacturer Part Number | 6172507-6172506 |
These SHOXTEC front complete strut assemblies replace both front struts on compatible 2006–2007 Infiniti M35 models to restore ride control and suspension performance. Each assembly includes the spring and mounting components so installation is straightforward for a mechanic and simpler for experienced DIYers. The listing emphasizes factory-quality fitment to match original ride characteristics and a rust-resistant coating for longer life. In practice this product gives a quick way to refresh worn front suspension and reduce nose-dive, uneven tire wear, and loose steering feel that come with aged struts. The package is heavier and built as a full assembly, so you do not need to transfer old mounts or springs, but that also means the parts are bulkier to handle during installation. Fitment excludes the X submodel and sport suspension, so confirming submodel compatibility before purchase is important. For a risk-averse buyer wanting a like-for-like replacement, these struts provide a serviceable, factory-oriented solution with corrosion protection and complete assembly convenience.
Best for: Risk-averse mainstream buyers seeking a reliable, factory-style suspension repair who prioritize restoring original ride quality and minimizing installation guesswork.
Less Ideal for: Shoppers who prefer performance-tuned suspension upgrades or who need parts that cover the X submodel or sport suspension should look elsewhere.
- Complete front strut assemblies include springs and mounts for drop-in replacement without reusing old parts
- Designed to meet or exceed factory specifications for straightforward fit and original ride feel
- Protective coating resists rust and corrosion to extend service life
- Simplifies installation for technicians and experienced DIYers by providing all necessary components
- Not compatible with X submodel or vehicles equipped with sport suspension, so fitment is limited
- Heavier, full-assembly units are bulkier to handle during installation
Verdict A ready-to-install, factory-oriented front strut pair for 2006–2007 Infiniti M35 owners who want a straightforward, corrosion-resistant replacement—confirm submodel compatibility first.
5. A-Premium Rear Shock Strut Assembly — 2‑Piece Set for Infiniti FX35/FX45 (2003–2008)
| Fitment | Infiniti FX35, FX45 2003–2008 |
|---|---|
| Position | Rear left and right (pair) |
| Type | Gas, double-pipe |
| Quantity Sold | Set of two |
| Manufacturer Part Number | APSA1059 |
These A-Premium rear shock struts are a direct replacement pair for the Infiniti FX35/FX45 (2003–2008), sold as a two-piece set intended for both driver and passenger rear positions. They use a gas charge and double-pipe design to restore damping and ride control after worn factory units, and arrive matched so both sides are replaced at once. Typical installation is a suspension job using common tools or a shop visit; the aluminum construction and factory-style fitment aim to simplify swap-in fit and keep handling predictable. Buyers can expect improved rear control and reduced bounce compared with tired original shocks, plus the seller-backed one-year unlimited-mileage guarantee. Limitations include a street-oriented damping tune that some drivers call soft and the lack of extensive brand cycling test data, so drivers seeking firm performance tuning or OEM dealer parts might prefer other options. Fitment is limited to the specified Infiniti models and years, so confirm vehicle compatibility before ordering.
Best for: Practical optimizers who want a budget-conscious, vehicle-specific replacement to revive rear ride quality and handling without paying dealer prices.
Less Ideal for: Drivers seeking a firmer sport-tuned setup or those who prefer purchasing from a major OEM parts supplier should consider upgraded or factory-sourced alternatives.
- Vehicle-specific rear fitment for Infiniti FX35/FX45 2003–2008 simplifies installation and reduces modification needs
- Gas-charged, double-pipe design provides more consistent damping than worn original shocks
- Sold as a matched two-piece set so both rear sides are replaced together
- Aluminum components reduce corrosion risk compared with untreated steel and help with longevity
- Damping is tuned toward comfort and may feel too soft for aggressive driving
- Limited published test data and brand recognition compared with established OEM suppliers
Verdict A practical, budget-friendly rear shock pair that restores ride comfort and control on 2003–2008 Infiniti FX35/FX45 but leans toward a comfort-oriented feel rather than sporty firmness.
6. Detroit Axle Rear Shock Absorbers and Sway Bar Links Kit for 2003–2008 Infiniti FX35/FX45
| Position | Rear |
|---|---|
| Includes | 2 Rear Shock Absorbers + 2 Rear Sway Bar Links |
| Fitment Years | 2003–2008 Infiniti FX35/FX45 |
This Detroit Axle kit bundles two rear shock absorbers with two rear sway bar end links intended as direct replacements for the 2003–2008 Infiniti FX35/FX45. The shocks come as complete assemblies that install without special tooling and the sway bar links restore the rear antiroll connection, so the kit addresses both damping and roll-control at once. In real-world use the shocks soften impacts and improve stability over worn components while the end links reduce body roll during cornering, producing a firmer, more controlled highway feel on the FX35. Notable features include factory-style fitment and impact and fatigue testing claimed by the brand. Expect an easier DIY swap compared with separate core-and-rebuild jobs, but this is a replacement-level part set rather than an aggressive performance upgrade for track use. Build quality appears solid for street and spirited driving, though a few long-term reports note premature failures on other vehicle applications, so durability can vary. Installation is straightforward for a competent DIYer or any shop familiar with Infiniti rear suspension work.
Best for: Performance-oriented Infiniti FX35 owners who prioritize restoring firm, controlled handling and prefer a single kit to refresh damping and rear roll control in one service interval.
Less Ideal for: Drivers seeking aggressive, track-tuned suspension components or heavy-duty offroad setups should consider aftermarket shocks and upgraded end links designed for higher loads and cornering forces.
- Complete rear kit includes both shock assemblies and sway bar end links for one-step installation
- Designed for direct fit to 2003–2008 Infiniti FX35/FX45 which simplifies part matching
- Shocks arrive as full assemblies so no special tools or extra components are required for installation
- Manufacturer states impact, wear, and fatigue testing for improved consistency
- Intended as a factory-style replacement rather than a high-performance, track-oriented upgrade
- Some user reports on other vehicle fits mention early failures, so long-term durability may vary
Verdict A convenient, factory-fit replacement kit that tightens rear handling on the Infiniti FX35 for street and spirited driving but is not a track-grade performance upgrade.
Choosing the Right Infiniti FX35 Shock Absorber: Key Factors to Consider
Damping Characteristics
Damping determines how the shock absorber controls compression and rebound when the wheel moves. Stiffer damping can reduce body roll and improve cornering, while softer damping favors ride comfort on rough roads.
Matching damping curves to the FX35's weight and suspension geometry matters because mismatched valving can cause excess bouncing, reduced traction, or premature tire wear. Look for units with tuned valving or adjustable damping if you need to fine-tune the balance between handling and comfort.
Mounting and Fitment
Correct fitment ensures the shock lines up with the FX35's mounts and that travel limits and bump stops function as designed. Poor fitment can cause binding, odd noises, or accelerated wear on related suspension components.
Choose shocks specified for the Infiniti FX35 that include the correct top mounts, bushings, and hardware. Where applicable, verify whether the front shock absorber and rear shock replacement items match the factory mounting orientation and stroke length.
Build Quality and Materials
Construction materials and manufacturing tolerances affect durability and performance consistency. Hardened piston rods, quality seals, and corrosion-resistant finishes reduce the chance of leaks and failure over time.
High-quality internals help the shock maintain consistent damping across varying temperatures and loads. Consider shocks with reinforced bodies or coatings if you drive in salty or humid climates to minimize corrosion-related degradation.
Ride Comfort Versus Performance Balance
Decide whether you prioritize a smoother ride or more responsive handling. Some shocks are tuned to emphasize comfort, isolating occupants from road imperfections, while others emphasize firmer control for sportier driving.
Think about your primary driving conditions: daily commuting and long highway miles typically benefit from comfort-focused damping, while spirited driving or towing calls for firmer control. Selecting the appropriate balance helps avoid compromises that undermine the FX35’s intended behavior.
Serviceability and Warranty
Warranty terms and ease of service are useful signals about expected longevity and manufacturer support. A longer warranty suggests confidence in component life, while available replacement parts and rebuild options can extend service life.
Also consider whether the unit requires special tools or press-fit procedures for installation. Products that are straightforward to mount on the FX35 with common tools reduce labor time and the chance of installation errors when you replace worn shocks.
Noise, Seal Integrity, and Leakage Prevention
Shock absorber noise and oil leaks are common failure signs that degrade performance. Seals and piston guide design influence whether the unit resists weeping and maintains smooth operation without producing clunks or squeaks.
Inspect product specifications for improved seal designs, dust boots, and positive pressure valves that reduce the likelihood of shock absorber noise or seepage. Proper sealing helps maintain consistent damping and prevents contamination that would otherwise accelerate wear.
FAQ
How do I know if my Infiniti FX35 shock absorber needs replacement?
Common indicators include excessive bouncing after hitting a bump, noticeable lean or sway during cornering, and visible oil on the shock body. You may also hear clunking or thumping sounds over rough surfaces. Those signs often point to worn damping or leaking seals and usually warrant inspection and likely replacement.
Can I replace just the front shock absorber and leave the rear unchanged?
You can replace only the front or rear, but uneven wear can change handling balance. Replacing shocks in axle pairs is generally recommended to maintain consistent damping characteristics and predictable vehicle behavior, especially on the Infiniti FX35 where matched control front to rear matters.
What maintenance helps prolong shock absorber life?
Regularly check for leaks, damaged dust boots, and loose mounts. Keep suspension bushings and related mounting hardware in good condition to avoid added stress on the shock. Preventative inspections after driving on rough roads help catch issues early and reduce the chance of sudden failures.
Will upgraded shocks change my FX35’s ride height?
Most direct-replacement shock absorbers are designed to preserve the factory ride height. Some performance-oriented units may alter height if they include integrated springs or are part of a coilover system. For standard replacements, expect the vehicle’s height to remain essentially the same.
How long does replacing shocks on an Infiniti FX35 usually take?
A typical axle of shock replacements can often be completed within a few hours with the right tools and a lift. Time depends on access, whether mounts or hardware are corroded, and if additional alignment work is required. Allow extra time if you plan to replace bushings or mounts at the same time.
Will replacing shocks fix car handling problems like body roll or instability?
Replacing worn shocks often reduces body roll and restores more predictable handling because new absorbers improve wheel contact and control. However, handling issues can also stem from tires, alignment, or worn suspension components, so addressing shocks is one important step among several.
How We Chose the Best Infiniti FX35 Shock Absorber
We focused on shock absorbers specifically compatible with the Infiniti FX35 and evaluated candidates across multiple real-world dimensions. Key criteria included ride quality, meaning how well the shock controls rebound and compression for comfortable, controlled travel; durability and service life based on construction and materials; mounting and fit accuracy to ensure straightforward installation on the FX35; and corrosion and seal protection to reduce leaks and maintain performance. Other important filters included parts engineering that preserves correct damping curves for the FX35, warranty coverage as an indicator of manufacturer confidence, and availability of both front shock absorber and rear shock replacement options to allow complete-axle refreshes. We excluded components not explicitly specified for the FX35 or those intended only as universal fitments without documented fitment data. We also filtered out rebuild-only units and products with unclear sealing or valving information. The final six were chosen to represent the best balance of control, longevity, and OEM-fit installation for the Infiniti FX35.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right Infiniti FX35 shock absorber means weighing the tradeoff between ride comfort and handling control, verifying fitment for front and rear positions, and favoring robust construction and good sealing. Prioritize units that match the FX35’s damping needs and offer reliable mounting to preserve predictable steering and stability. When you focus on damping characteristics, fitment accuracy, and build quality, you are more likely to restore ride quality and address common shock absorber symptoms without introducing new handling compromises.
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