UMI Performance 78-96 GM B-Body Boxed Lower Control Arm & Adjustable Upper Control Arm Kit

If you're looking to dial in your rear suspension on your 1978-1996 GM B-Body vehicle, this UMI Performance control arm kit is a solid choice. This kit replaces your stock lower and upper control arms with well-built components designed to add strength, improve ride quality, and give you the ability to tune your rear end alignment. It's a popular upgrade for vehicles like the Chevrolet Caprice, Buick LeSabre, and Pontiac Bonneville, offering a significant improvement over the factory setup.

The boxed lower control arms are built tough with grease-able polyurethane bushings that help absorb road vibrations while providing solid support. They also feature reinforced sway bar holes for added durability. The upper control arms, called "Ultimate Arms" by UMI, are where the real tuning happens. They offer on-car adjustability using a right and left-hand thread system with a 4140 Chrome Moly adjuster. This makes it straightforward to set your pinion angle precisely, which is crucial for optimizing performance and reducing drivetrain stress, especially after lowering your vehicle or making other suspension modifications. The inclusion of a QA1 Teflon-lined spherical rod end helps eliminate rear end bind, leading to a smoother ride and better handling.

Every part in this kit is CNC machined for accuracy, ensuring a precise fit and consistent performance. The combination of strong materials like 4140 Chrome Moly and durable polyurethane bushings, along with the advanced adjustability of the upper arms, makes this kit a comprehensive solution for anyone serious about improving their GM B-Body's rear suspension. This kit is designed to be a direct replacement for your factory arms, simplifying the installation process.