UMI Performance 70-81 GM F-Body Upper A-arms Front Adjustable Tall ball joints

When you're looking to dial in the suspension on your 1970-1981 GM F-Body, or even a 1978-1996 B-Body, UMI Performance's adjustable upper A-arms are a solid choice. These arms are designed to give you improved cornering traction and more precise steering feel. They come with a tall ball joint that's a half-inch taller than stock, which helps improve camber gain and makes a noticeable difference in how the car handles through turns. Plus, they're a bit shorter than stock, which means you won't need as many shims to get your alignment settings just right, especially if you're aiming for aggressive racing alignments.

What you get in this package are the adjustable upper A-arms themselves, built with robust tubular construction using 1.250-inch DOM steel and 4140 threaded adapters for strength. They feature a thick, laser-cut ball joint plate with a high-quality tall ball joint already installed. The single adjustable rod end design allows you to easily dial in your caster and camber without a stack of shims, and it helps reduce stiction for more consistent performance, whether you're on the street or at the drag strip. These are proudly designed, manufactured, and raced in the USA, with a strong 4140 CrMo cross shaft for added peace of mind. You can choose between a striking UMI red or a sleek gloss black powder coat finish.

For the best results, UMI recommends combining these upper A-arms with their lower A-arms to achieve a significant amount of positive caster, typically between 8 to 10 degrees, which really helps with steering feel and stability. These are designed as a direct bolt-in replacement, making installation more straightforward. They're a popular choice for Pro-Tour style builds where stability and cornering performance are key, but they're also built to be street-worthy for daily driving.