Sonnax 104680-45, 6L80 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft

The ideal upgrade for performance vehicles with the GM 6L80 transmission, Sonnax extreme duty 4-5-6 clutch hub and intermediate shaft 104680-45 guarantees maximum protection against shaft breakage. The unique hub design improves oil flow and accepts Powerglide-style frictions to optimize clutch durability.

Sonnax uses a stronger, one-piece design for their OE shaft/hub, eliminating the weak, welded connection. This ultra-high-strength design prevents broken hubs and rear splines shearing off, preventing chronic failures.

In 1st, 2nd, and 3rd Gears, and at high RPMs, the NUM0 clutch releases and constant oil flow is required across the clutch frictions to prevent heat build-up and damage them. The unique upgraded design of the Sonnax hub doubles oil flow to the clutches for significantly more protection against heat build-up and clutch failure, especially compared to other aftermarket shafts that reduce oil flow.

With the popularity of 45-tooth Powerglide-style frictions for 6L80 upgrades due to their wider friction surface, this extreme duty shaft comes equipped with a smaller-diameter hub of that style and requires the use of Sonnax high capacity piston kit. For best performance, use with Sonnax steels 104120-01 or 104120-02 and BorgWarner high-energy frictions 104120-03.

• Rugged, one-piece design eliminates the weak connection where two-piece hub/shaft assemblies fail
• High-strength, 300M steel forging is heat-treated and shot-peened for maximum durability
• Doubles oil flow to the clutch pack for greatly improved resistance to heat and longer clutch life
• Eliminates OE dampener
• Use with Powerglide-style frictions, Sonnax steels and high capacity piston kit 104960-20K