Caliper Bracket Clamp on GM Metric

The U-B Machine Caliper Bracket Clamp on GM Metric is a heavy-duty rear brake caliper mounting bracket engineered for light-duty truck and vehicle platforms using GM metric brake calipers and 3-inch outer diameter axle tubes. Built from steel and finished in black paint, this clamp-on bracket eliminates the need for welding, making it an accessible solution for brake system installation, retrofit, and repair applications where OEM-style mounting is required or preferred.

Weighing 2.6 pounds with compact dimensions of 6.75 x 2.15 x 8.7 inches, this bracket is designed to accommodate the specific geometry of GM metric calipers while clamping securely to a 3-inch OD axle tube. The clamp-on design—as opposed to welded or bolt-through alternatives—offers quick installation and removal for maintenance or component swaps. Steel construction provides the rigidity needed to maintain caliper alignment under braking loads, while black paint offers basic corrosion resistance suitable for typical road and light off-road duty.

This bracket is specified for builders and technicians performing brake system installations on vehicles equipped with 3-inch axle tubes and GM metric brake hardware. It serves restoration projects, custom builds, and replacement scenarios where OEM or equivalent caliper brackets are unavailable or damaged. Users should verify that their specific vehicle platform uses a 3-inch OD axle tube and accepts GM metric calipers before purchase to ensure compatibility.

The clamp-on design avoids the permanent commitment of welding, making this bracket a practical choice for applications where adjustability or future removal may be necessary. Proper torque and fastener selection—not included with the bracket—are critical to maintaining secure mounting and safe brake operation.