SuperPro Adjustable Rear Upper Trailing Arms – 2003–2024 Toyota 4Runner, 2007–2014 FJ Cruiser & 2010–2023 Lexus GX460 – Non-KDSS – TRC498
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SuperPro Adjustable Rear Upper Trailing Arm Kit
Correct rear suspension geometry on a lifted Toyota 4Runner, Toyota FJ Cruiser, or Lexus GX460 with the SuperPro TRC498 adjustable rear upper trailing arm kit.
These heavy-duty arms provide a broad adjustment range for correcting rear pinion angle and fine-tuning wheelbase after suspension height changes. Proper adjustment can help reduce driveline vibration, improve suspension alignment, and restore more predictable on-road and off-road handling.
The arms use high-articulation SuperPro bushings to support suspension movement while maintaining controlled, refined operation. Their heavy-duty construction is designed for lifted daily drivers, overland vehicles, and off-road builds that require more adjustment than the original fixed-length rear upper arms provide.
The TRC498 arms are adjusted off the vehicle and offer a center-to-center length range of 302mm to 337mm.
Product Features
- Heavy-duty adjustable rear upper trailing arm pair
- Corrects rear pinion angle after lifting
- Allows rear wheelbase adjustment
- Helps restore rear suspension geometry
- May help reduce driveline vibration caused by incorrect pinion angle
- High-articulation SuperPro suspension bushings
- Suitable for lifted street, overland, and off-road vehicles
- Turnbuckle-style length adjustment
- Adjustable from 302mm to 337mm
- Off-vehicle adjustment
- Sold as a pair
- One kit required per vehicle
- SuperPro part number TRC498
Vehicle Fitment
- 2003–2024 Toyota 4Runner
- 2007–2014 Toyota FJ Cruiser
- 2010–2023 Lexus GX460
- Non-KDSS vehicles only
Fitment varies by model year and trim. Confirm that the vehicle is not equipped with KDSS before ordering.
Product Specifications
- Manufacturer: SuperPro
- Product Line: Roll Control
- Part Number: TRC498
- Product Type: Adjustable rear upper trailing arm kit
- Installation Position: Rear upper
- Arm Quantity: Two
- Adjustment Type: Turnbuckle
- Adjustment Range: 302mm to 337mm
- On-Vehicle Adjustable: No
- Primary Alignment Adjustment: Pinion angle
- Wheel Alignment Required: Yes
- Recommended Alignment: Rear wheel alignment
- Estimated Installation Time: Four hours
- EAN: 9317745804079
Installation Note
The arms must be removed or disconnected for adjustment. Set both arms to equal lengths unless the vehicle’s suspension setup requires otherwise, then verify pinion angle, wheelbase, suspension clearance, and fastener torque.
A professional rear wheel alignment is recommended after installation.
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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