Best Adjustable Upper Trailing Arms for GM a-Body and Similar Vehicles
Choosing the right adjustable upper trailing arm improves suspension geometry, steering feel, and cornering stability. This guide focuses on versatile, adjustable upper arms that fit GM A-Body classics and other popular platforms, offering improved handling for track days and daily driving. The selections below highlight parts with robust bushings, easy adjustability, and solid build quality to help maintain proper alignment and reduce clunking or tire wear.
Summary of selected products
| Product | Key Benefit | Fitment Focus |
|---|---|---|
| maXpeedingrods Rear Control Arms (GM A-Body) | Adjustable upper arms, greasable polyurethane bushings | GM A-Body 1967-1972 |
| maXpeedingrods Adjustable Rear Control Arms Kit | Comprehensive kit with multiple adjustable arms | GM A-Body 1967-1972 |
| BST BSSP Rear Trailing Upper Control Arm Pair | Direct replacements with bushings | 02-09 Envoy/Trailblazer family |
| IMOOA Triangulated Rear Trailing Arms (GM A-Body) | Adjustable upper arms for precise alignment | GM A-Body 1968-1972 |
| TRQ Rear Upper Control Arm Set (Honda CR-V etc.) | Includes both sides, DIY friendly | 2011-2016 Honda CR-V, 2011-2014 Dodge/Chrysler |
maXpeedingrods Rear Control Arms For GM A-Body
Brand: maXpeedingrods. This kit is designed for GM A-Body platforms from 1967-1972, covering several makes including AMC, Buick, Chevrolet, Chrysler, Dodge, and Ford models. The rear upper control arms are adjustable from 11.81 to 14.56 inches, aiding track tuning and street driving. The arms use greasable polyurethane bushings that deliver stronger, immediate response and improved handling and control.
maXpeedingrods Adjustable Rear Control Arms & Trailing Arms Kit
Brand: maXpeedingrods. This comprehensive kit covers A-Body era cars (1967-1972) with multiple arms included: two trailing arms, two rear lower control arms, and two rear upper control arms. Adjustable lengths are specified as rear lower arms from 21.85-23.6 inches and rear upper arms from 9.4-12.2 inches, providing flexibility for track-focused or street applications.
BST BSSP Pair Rear Trailing Upper Control Arm
Brand: BST BSSP. This pair includes a rear upper control arm for both sides with bushings included, designed as direct replacements. Part numbers align with popular GM-era and SUV models in various fitments, providing straightforward installation and reliable upgrade for improved suspension performance.
IRONTREE K90489 Rear Upper Adjustable Control Arm
Brand: IRONTREE. This pair is designed for 2002-2006 Honda CR-V and 2003-2011 Honda Element models, offering premium OE-style construction with pre-assembled ball joints for easier installation. The arms feature corrosion-resistant coating for longevity and are built to meet or exceed OE form, fit, and function requirements.
TRQ Rear Upper Control Arm Set
Brand: TRQ. This kit includes one rear driver side and one rear passenger side upper control arm, with several reference numbers noted for cross-compatibility. It emphasizes a DIY-friendly installation experience with access to a broad catalog of replacement part videos to assist installation and repairs.
Buying Guide: Key Considerations For Adjustable Upper Trailing Arms
When selecting adjustable upper trailing arms, consider fitment accuracy, adjustability range, bushings, and ease of installation. For classic GM A-Body vehicles, compatibility and precise alignment are crucial to maintain handling characteristics. For modern platforms, ensure the arms integrate with existing mounting points and ABS or stability control systems if applicable.
Arm construction should balance strength and weight. Look for heavy-gauge steel, corrosion resistance, and pre-assembled ball joints where possible to reduce installation complexity. Bushings should be polyurethane or similar high-performance materials for improved response, but account for noise and ride comfort. Adjustable lengths should cover a broad range to accommodate camber and toe adjustments between street use and track days.
Warranty and seller reputation matter for performance parts. Prefer products with documented testing, OE-style fitment, and clear installation guidance or DIY videos. If you drive a mix of daily commutes and weekend track sessions, prioritize arms offering easy retrofitting and compatibility with common repair schedules.
Installation considerations include alignment needs, potential frame or subframe modifications, and potential impacts on ride height. Some kits provide full trailing arm sets to simplify installation, while others target single-arm upgrades. Weigh the trade-offs between installed cost, durability, and the level of adjustability you require for your intended driving discipline.
In summary, choose adjustable upper trailing arms from reputable brands that offer clear fitment for your vehicle, robust bushings, and a generous adjustability range. This approach helps preserve or enhance handling, steering precision, and tire wear performance across varied driving conditions.