UMI Performance 78-88 GM G-Body C5/C6 Front Brake Conversion Hubs Bearings Bracket Kit

UMI Performance is known for making well-built suspension components for classic American cars. If you're looking to give your 1978-1988 GM G-Body a serious brake upgrade, this C5/C6 Front Brake Conversion Hubs, Bearings, and Bracket Kit is a solid option. This kit lets you adapt the larger, more powerful C5 or C6 Corvette brake systems to your G-Body spindles, making a big difference in stopping power for street or track use.

This kit includes laser-cut conversion brackets and lightweight aluminum hubs made right here in the USA. The hubs are designed to mount your C5/C6 brake rotor in the exact factory position, so your front track width won't change. You get premium bearing cups and cones, plus the correct seals for reliable performance, even in demanding situations like road racing or auto-x, as proven on UMI's own Green Machine. The hubs feature both 5 x 4-1/2 and 5 x 4-3/4 bolt patterns, giving you flexibility with wheel choices.

To complete the installation, you'll need C5 or C6 calipers, rotors, brake pads, and brake lines, along with 1/2-20 threaded wheel studs. The kit includes a detailed list of GM part numbers to help you source these additional components. Keep in mind that C5 brakes require at least a 17-inch wheel for clearance, while C6 brakes need an 18-inch wheel, so be sure to check your wheel fitment before purchasing. This kit is a popular choice for many G-Body owners, including those with Buick Regal, Chevrolet Monte Carlo, and Oldsmobile Cutlass Supreme models.