Yukon Thick Ring and Pinion Gear Set for GM 14-Bolt truck on a white background

Yukon GM 14-Bolt Ring & Pinion Gears - 10.5", 30-Spline, Thick

YUKYG GM14T-456T

$374.30
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Shipping calculated at checkout.

Upgrade your GM 14-bolt with a 10.5" Thick Ring and Pinion Gear Set designed specifically for 4.11 and down carrier applications. This gear set allows you to run deeper gear ratios without changing carriers, making it a smart solution for builds running larger tires or needing improved torque multiplication. 

Designed for GM full-size truck axles, this thick gear allows deeper gear ratios to be installed on a carrier originally designed for 4.11 and numerically lower gears without requiring a carrier replacement. This thick gear set is specifically designed to work with 4.11 and down carriers, and you do not need to purchase a new carrier when upgrading to deeper gear ratios.

Includes:

  • (1) GM 14-Bolt Thick Ring Gear
  • (1) Pinion Gear
  • Available gear ratios: 4.56, 4.88, 5.13, & 5.38
Specifications 
  • Fits GM 10.5" 14-Bolt Axle
  • Thick gear set for 4.11 and numerically lower carriers
  • Fits GM 14-Bolt carriers originally designed for:
    • 3.21
    • 3.42
    • 3.73
    • 4.10
  • carrier applications.
  • Ring Gear Diameter: 10.5"
  • Pinion Spline Count: 30 spline
  • Ring Gear Bolts: 12
  • Differential Cover Bolts: 14
  • Available gear ratios: 4.56, 4.88, 5.13, & 5.38
  • Works with a factory Gov-Lock if your axle uses the correct 4.11 and down carrier. Always verify your carrier before ordering.
Fitment 
Make Model Year Range
Chevrolet Avalanche 2500 2002–2006
Chevrolet C20 Pickup & Suburban 1973–1986
Chevrolet C2500 1988–2000
Chevrolet C2500 Suburban 1992–1999
Chevrolet C30 Pickup 1973–1986
Chevrolet C3500 1988–2000
Chevrolet C3500HD 1991–2002
Chevrolet Express 2500 1996–2015
Chevrolet Express 3500 1996–2015
Chevrolet Express 4500 2009–2015
Chevrolet G20 1975–1995
Chevrolet G30 1979–1996
Chevrolet K20 Pickup & Suburban 1973–1986
Chevrolet K2500 1988–2000
Chevrolet K2500 Suburban 1992–1999
Chevrolet K30 Pickup 1972–1986
Chevrolet K3500 1988–2000
Chevrolet P30 1997–1999
Chevrolet R20/R2500 Suburban 1987–1991
Chevrolet R30 1987–1988
Chevrolet Silverado 2500 1999–2004
Chevrolet Silverado 2500 HD 2001–2015
Chevrolet Silverado 2500 HD Classic 2007
Chevrolet Silverado 3500 HD 2007–2013
Chevrolet Suburban 2500 2000–2013
Chevrolet V20/V2500 Suburban 1987–1991
Chevrolet V30 1987–1988
GMC C25/C2500 Pickup & Suburban 1973–1978
GMC C2500 1979–2000
GMC C2500 Suburban 1979–1999
GMC C35/C3500 Pickup 1973–1978
GMC C3500 1979–2000
GMC C3500HD 2001–2002
GMC G1500 1981–1987
GMC G3500 1979–1996
GMC K25/K2500 Pickup & Suburban 1967–1986
GMC K2500 1979–2000
GMC K2500 Suburban 1979–1999
GMC K35 1977–1978
GMC K3500 1979–2000
GMC P3500 1997–1999
GMC R2500/R2500 Suburban 1987–1991
GMC R3500 1987
GMC Savana 2500 1996–2015
GMC Savana 3500 1996–2015
GMC Savana 4500 2009–2015
GMC Sierra 2500 1999–2004
GMC Sierra 2500 HD 2001–2015
GMC Sierra 2500 HD Classic 2007
GMC V2500/V2500 Suburban 1987–1991
GMC V3500 1987
GMC Yukon XL 2015
GMC Yukon XL 2500 2000–2013
Tech Insight 

Why Re-Gear a GM 14-Bolt?

Installing larger tires effectively reduces your final drive ratio, causing:

  • Reduced acceleration
  • Increased transmission heat
  • Lower towing performance
  • More strain on the engine

Re-gearing restores lost torque, improves drivability, reduces transmission stress, and helps maintain proper engine RPM with larger tires.

Is this good for towing?

Yes, this gear set is ideal for:

  • Towing heavy trailers
  • Diesel performance builds
  • Larger tire upgrades
  • Overlanding
  • Rock crawling
  • Mud trucks

What size tires should I run with these gears?

Ratio

Recommended Tire Size

4.56

35"-37"

4.88

37"-40"

5.13

40"-42"

5.38

42"+


Does this include an install kit?

This listing includes only the ring and pinion gear set. A GM 14 Bolt Master Overhaul Kit is recommended when installing new gears.

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