UMI Performance 59-64 GM B-Body Rear Lower Control Arms/Trailing Arms

You're getting a set of UMI Performance boxed rear lower control arms, also known as trailing arms, designed to directly replace the stock stamped steel units on your 1959-1964 GM B-Body vehicle. These aren't just replacements; they're an upgrade built to handle the demands of restoration projects, street driving, cruising, or even drag racing. The boxed design adds significant strength over the original parts, which can unfortunately rust and weaken over time.

What really sets these apart is the inclusion of grease-able polyurethane bushings. These bushings offer improved ride quality and much less deflection than the factory rubber ones. This means less body roll when you're cornering, better traction off the line by minimizing wheel hop, and a more solid feel from your rear suspension. They're constructed from strong 0.120-inch wall rectangular tubing, with CNC machined holders for the bushings and MIG-welded end caps to keep road debris out. Plus, the spring perches are correctly positioned to accept your factory springs.

UMI Performance offers an optional hardware kit for installation, which includes most of the necessary Grade 8 hardware, though you'll need to source your own shock mount bolts separately. These control arms are a well-built solution to improve your classic car's rear suspension performance and durability.