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SKU:SC-104680-45
Suncoast 6L80E BILLET SHAFT AND HUB Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft
Suncoast 6L80E BILLET SHAFT AND HUB Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft

Description
Use with Powerglide-style, 45-tooth frictions, Sonnax steels & high capacity piston kit 104960-20K.
OE Part No. 24238004
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.
In place of the two-piece shaft/hub, Sonnax uses a much stronger, one-piece design that eliminates the OE assembly’s weak, welded connection. The one-piece design is custom forged from ultra high-strength 300M billet steel, then heat treated and shot peened for added durability. This combination of features guards against broken 4-5-6 hubs and the risk of rear splines shearing off — chronic failures in performance cars and trucks as well as heavy commercial vehicles.
The 4-5-6 clutch is released in 1st, 2nd and 3rd Gears, and at high RPMs, constant oil flow is required across the clutch frictions to prevent heat build-up and damaged clutches. 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.
Since Powerglide-style, 45-tooth frictions are a popular 6L80 upgrade due to their wider friction surface, this extreme duty shaft features that style of smaller-diameter hub and must be used with Sonnax high capacity piston kit 104960-20K. 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
Fitments
2020 Chevrolet Silverado 1500
2020 GMC Sierra 1500
2019 Chevrolet Silverado 1500
2019 GMC Sierra 1500
2018 Chevrolet Silverado 1500
2018 GMC Sierra 1500
2017 Chevrolet Corvette
2017 Chevrolet Silverado 1500
2017 GMC Sierra 1500
2017 Pontiac GTO
2016 Chevrolet Corvette
2016 Chevrolet Silverado 1500
2016 GMC Sierra 1500
2016 Pontiac GTO
2015 Chevrolet Corvette
2015 Chevrolet Silverado 1500
2015 GMC Sierra 1500
2015 Pontiac GTO
2014 Chevrolet Corvette
2014 Chevrolet Silverado 1500
2014 GMC Sierra 1500
2014 Pontiac GTO
2013 Chevrolet Corvette
2013 Chevrolet Silverado 1500
2013 GMC Sierra 1500
2013 Pontiac GTO
2012 Chevrolet Corvette
2012 Chevrolet Silverado 1500
2012 GMC Sierra 1500
2012 Pontiac GTO
2011 Chevrolet Corvette
2011 Chevrolet Silverado 1500
2011 GMC Sierra 1500
2011 Pontiac GTO
2010 Chevrolet Corvette
2010 Chevrolet Silverado 1500
2010 GMC Sierra 1500
2010 Pontiac GTO
2009 Chevrolet Corvette
2009 Chevrolet Silverado 1500
2009 GMC Sierra 1500
2009 Pontiac GTO
2008 Chevrolet Corvette
2008 Chevrolet Silverado 1500
2008 GMC Sierra 1500
2008 Pontiac GTO
2007 Chevrolet Corvette
2007 Chevrolet Silverado 1500
2007 GMC Sierra 1500
2007 Pontiac GTO
2006 Chevrolet Corvette
2006 Chevrolet Silverado 1500
2006 GMC Sierra 1500
2006 Pontiac GTO
Instructions
Specifications
SKU: SC-104680-45
GTIN: 840385614726
Manufacture Name: Suncoast Performance
Shipping Weight: 3 lb
Shipping Length: 10 in
Shipping Width: 4 in
Shipping Height: 4 in
EO Number:
Cross Reference #
Warranty
California Proposition 65 Warning
California Proposition 65 Warning - P65warnings.ca.gov
SC-104680-45
Suncoast 6L80E BILLET SHAFT AND HUB Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft
Use with Powerglide-style, 45-tooth frictions, Sonnax steels & high capacity piston kit 104960-20K.
OE Part No. 24238004
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.
In place of the two-piece shaft/hub, Sonnax uses a much stronger, one-piece design that eliminates the OE assembly’s weak, welded connection. The one-piece design is custom forged from ultra high-strength 300M billet steel, then heat treated and shot peened for added durability. This combination of features guards against broken 4-5-6 hubs and the risk of rear splines shearing off — chronic failures in performance cars and trucks as well as heavy commercial vehicles.
The 4-5-6 clutch is released in 1st, 2nd and 3rd Gears, and at high RPMs, constant oil flow is required across the clutch frictions to prevent heat build-up and damaged clutches. 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.
Since Powerglide-style, 45-tooth frictions are a popular 6L80 upgrade due to their wider friction surface, this extreme duty shaft features that style of smaller-diameter hub and must be used with Sonnax high capacity piston kit 104960-20K. 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
Suncoast 6L80E BILLET SHAFT AND HUB Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft