Looking for 3×3 rear trailing arms that fit your build and deliver reliable performance? This guide highlights five Amazon-listed options designed for different vehicles and purposes. It helps you pick the right trailing arms based on fitment, durability, and intended use—whether street handling, track tuning, or off-road projects. The following table provides quick comparisons to aid your decision.
| Product | Best For | Key Benefit |
|---|---|---|
| A-Premium 2 x Rear Trailing Arm, with Bushing, Compatible with Mazda | for Mazda 3 2014-2018, 3 Sport 2014 | Mazda 3 owners seeking replacement arms with bushings | Direct fit, includes bushings for smoother operation |
| Trailing Arm Kit, 3X3 Arms, 930 CV Joints, for 002 Bus Trans, Compatible with Dune Buggy | Dune buggy or light off-road builds needing robust 3×3 arms | Includes 930 CV joints for rugged use |
| AUTOACER Suspension Kit 10 Pcs | Tesla Model 3/Y owners seeking adjustable camber and toe control | Adjustable arms for customized chassis geometry |
| IRS 3×3 Aircraft 4130 Chromoly Tig Welded Boxed Micro Stub Trailing Arms | High-strength, lightweight performance builds | Chromoly construction, precision TIG welded |
| Adjustable Rear Adjustable Arms Kit, Set of 8 | Tesla Model 3/Model Y enthusiasts pursuing extensive alignment tuning | Full set with camber and toe adjustability |
A-Premium Rear Trailing Arm For Mazda 3
This A-Premium rear trailing arm is designed for Mazda 3 models from 2014 to 2018 and the 2014 Mazda 3 Sport. It includes a bushing, simplifying installation and providing smoother motion compared with bushings beyond stock. Best for daily drivers or hobbyists replacing worn components to restore original handling. A potential limitation is the availability of compatible bushings for different trims, so verify fitment before purchase.
Trailing Arm Kit, 3X3 For Dune Buggy
This 3×3 trailing arm kit is tailored for dune buggy builds and similar off-road platforms, featuring 930 CV joints for added durability in rugged terrains. Best for off-road enthusiasts or builders seeking a robust, compatible option for light Transaxle arrangements. A caution: verify compatibility with your specific buggy frame and CV joint requirements before ordering.
AUTOACER Rear Suspension Kit For 3 Series E36/E46
This AUTOACER 10-piece suspension kit includes rear toe/track control arms, trailing arm bushings, and wishbone bushings. It targets E36, E46, M3, and related BMW platforms. Best for owners performing comprehensive rear suspension refreshes who want a complete set rather than single arms. Limitation: compatibility beyond listed BMW models may require adaptation or professional assessment.
IRS 3×3 Chromoly Trailing Arms
These 3×3 aircraft-grade chromoly trailing arms are TIG welded and boxed, offering high strength with a focus on lightweight performance. Best for builders prioritizing durability and structural integrity in performance setups. A note: chromoly components can be heavier than some alternatives, which may influence overall unsprung weight in sensitive applications.
Adjustable Rear Arms Kit For Tesla Model 3/Model Y
This kit features eight adjustable control arms—including camber x 2, toe x 4, and trailing x 2—for Tesla Model 3 (2017-2026) and Model Y (2020-2023). Best for track-focused Model 3/Model Y setups needing precise alignment and chassis geometry control. Choose this if you plan frequent adjustments; a limitation is the kit’s complexity for casual street use.
Buying Guide
What to consider when choosing 3×3 rear trailing arms:
- Vehicle compatibility: Confirm year, model, and drivetrain alignment to ensure proper fit and mounting points.
- Construction material: Chrome-moly and forged metals offer strength and lightness, while standard steel can be more economical but heavier.
- Adjustability: Determine if you need camber, toe, or trailing arm adjustability for street comfort or track tuning.
- Bushings and joints: Consider whether bushings are included and if joints (e.g., CV joints) meet your driving demands.
- Installation complexity: Some kits are straightforward replacements; others require alignment or professional installation.
- Intended use: Daily driving, performance driving, or off-road use should guide material choice and rigidity.
FAQ
What is a 3×3 trailing arm?
A 3×3 trailing arm is a rear suspension component designed with a 3-inch by 3-inch cross-section or architecture common in certain performance or custom builds, providing structural support and alignment control.
Do these arms require professional installation?
Depends on the vehicle and kit. Some are direct replacements, while others require alignment and possibly additional parts or tools.
Are chromoly trailing arms better?
Chromoly offers high strength-to-weight ratio and durability, beneficial for performance applications, but may be heavier than some exotic composites.
Can I use these with stock wheels?
Most kits are designed for specific vehicles and should be compatible with stock wheels if fitment matches. Verify clearance and offset during selection.
Will these arms affect wheel alignment?
Yes. Rear arms influence alignment geometry; adjustable arms can help maintain tire wear and handling when tuned correctly.