UMI 3047 78-88 G-Body C5C6 Front Brake Conversion Hubs & Bearings

UMI’s 3047 hub and bearing kit supports the UMI P/N 3046 C5 conversion brackets with a high quality Made In USA performance aluminum hub and premium bearings. The hub features 5 x 4-1/2 5 x 4-3/4 bolt patterns and is intended to face mount the C5 brake rotor in exact factory location (front track width is unaffected). The kit includes premium bearing cups and cones along with the correct rawhide seal for great performance and reliability. The 3047 kit is the choice for UMI’s Green Machine and has been thoroughly tested to withstand road race and auto-x competition. 100% manufactured in USA as well as tested and raced out of Philipsburg, PA – USA.

Kit includes: Driver and passenger side aluminum hubs, correct bearings and seals to mount the C5/C6 calipers and abutment brackets. Wheel studs are not included, 1/2-20 threaded studs will be required to complete installation. Determine stud length after choosing wheel and considering offset, whether or not spacers are required, and after determining wheel flange thickness.

Requirements: C5 brakes require a minimum of a 17” wheel for clearance while C6 requires an 18”wheel. Please research fitment before purchasing.

Installation Instructions (PDF)