Camburg 3.25 Race Series TT Rear Hub Kit (6x6.5 / 36sp)

Machined from 7075-T6 aluminum, these Camburg 3.25 Race Series TT Rear Hub Kits are built for the demands of race trucks and serious PreRunners. This is the same setup Camburg uses on their own KINETIK 7200/6100/TT vehicles, designed for maximum strength and longevity in high-stress environments. The larger 6 on 6.5 inch racing bolt pattern with 36 TT spline drive plates is specifically chosen for racing applications.

The hub body is constructed from substantial 8-inch round material, increasing strength around the wheel stud area. Camburg CNC machines these hubs in-house from 7075-T6 aluminum, then applies a type II anodize finish in matte black for durability and appearance. The included wheel studs are also machined in-house from 4340 chromoly, then heat-treated, stress-relieved, and finished with a black-oxide coating. These studs feature 5/8-18 threads with an 11/16 shoulder for optimal strength. Tapered, hub-centric center caps are included to help speed up wheel installation during critical race moments.

This kit comes complete with high-quality Timken bearings and races, along with National seals protected by bolt-on stainless retainers. The drive plates are machined from 4340 chromoly, broached, heat-treated, stress-relieved, and nickel-plated gray for corrosion resistance. Red brake rotor adapters, necessary hardware, O-rings, and bearing preload spacers round out the package. Attention to detail is evident, such as the drilled head bolts for safety wiring the brake rotor adapters. To complete this setup, you will need Camburg's weld-in spindle snouts and their custom spindle nut wrench. Wheels must have a 4.25-inch center bore and be machined for 5/8-inch wheel studs.