Adj. Upper Trailing Arms - 68-72 GM A-Body

The QA1 Adjustable Upper Trailing Arms for 68-72 GM A-Body vehicles are essential for restorers and performance builders looking to enhance rear suspension geometry control. These trailing arms are designed to replace worn or bent factory units, allowing for precise adjustments to axle angle and pinion geometry, which is crucial when modifying the chassis or correcting alignment issues.

The adjustable design of these trailing arms enables users to fine-tune the rear axle housing angle, which helps maintain proper driveline angles and reduces binding, vibration, or noise at the u-joints. This feature is particularly beneficial for those pairing vintage A-Body platforms with modern powerplants, as it allows for optimal pinion angle adjustment relative to the transmission output, improving traction during acceleration.

These trailing arms are compatible with 1968 through 1972 Chevrolet, Pontiac, Oldsmobile, and Buick A-Body models, making them an excellent choice for anyone restoring or modifying Chevelles, GTOs, 442s, or Skylarks. Installation is straightforward, requiring basic mechanical skills and utilizing factory bolt-on points without the need for frame modifications.