Camburg Engineering CAM-020012 3.25" Race Series TT Rear Hub Kit 6x6.50" 40-Spline

The Camburg Engineering CAM-020012 is a 3.25" Race Series TT Rear Hub Kit engineered for serious race trucks and high-performance prerunners. Configured in the 6x6.50" racing bolt pattern with a 40-spline drive plate, this kit delivers the durability and precision demanded by top-tier off-road competition.

Premium Construction:

• 7075-T6 aluminum hub body — CNC machined in-house from premium-grade billet aluminum and finished with a Type II matte black anodize for corrosion resistance and a clean appearance
• Wide bearing spread design — The 3.25" hub geometry provides an increased bearing spread for superior strength and long-term longevity under race conditions
• 8" round stock hub body — Larger diameter material used around the wheel stud area adds critical strength where it matters most
• 4340 chromoly wheel studs — Machined in-house, then heat-treated, stress relieved, and black-oxide coated; feature 5/8"-18 threads with an 11/16" shoulder for maximum clamping force
• 40-spline drive plate — Available in 36 TT spline or 40 spline configurations; this kit includes the 40-spline option for maximum torque transfer
• Tapered hub-centric center caps — Designed for fast, accurate wheel installation, which is critical during race conditions where pit time matters

Key Specifications:

• Hub Size: 3.25"
• Bolt Pattern: 6x6.50" (6 on 6.5" racing bolt pattern)
• Spline Count: 40-spline
• Hub Material: 7075-T6 aluminum
• Wheel Stud Material: 4340 chromoly
• Wheel Stud Thread: 5/8"-18 with 11/16" shoulder
• Finish: Type II matte black anodize
• Series: Race Series TT (Trophy Truck)

Proven on Camburg's own KINETIK 7200, 6100, and Trophy Truck race builds, the CAM-020012 represents the pinnacle of rear hub engineering for off-road racing and prerunner applications.