Rear Adjustable Lower Trailing Arms

The Dobinsons Adjustable Rear Trailing Arms (WA59-559K) are engineered to significantly enhance the performance and durability of your vehicle’s suspension system, particularly for lifted applications. These arms provide precise adjustability for the rear axle’s pinion angle, which is essential for maintaining optimal driveline alignment and improving overall handling after installing a suspension lift. Constructed from High Strength Low Alloy (HSLA) steel with a substantial wall thickness, these trailing arms offer exceptional strength and resistance to bending, ensuring longevity even under demanding off-road conditions. The arms are finished with a dual-layer protective coating of zinc plating followed by a black powder coat, providing superior resistance to corrosion and environmental wear. The adjustable design allows for fine-tuning of the rear axle's pinion angle, which is critical for preventing driveline vibrations that can occur with suspension lifts. For optimal results, it is recommended to set the initial length to match the factory arms, then adjust in half-inch increments until the pinion angle is correctly set. These adjustable trailing arms are an ideal upgrade for off-road enthusiasts and drivers seeking improved suspension articulation, optimized driveline geometry, and increased durability for both on-road and off-road driving. They are specifically designed for the 3rd Gen Toyota Tundra, and also recommended for use with a 2-inch lift or more on the 4th Gen Tacoma.