GM 9.5"
Nitro Helix, Helical Gear Limited-Slip Differential
Fits:
2014 and newer must have a 3.23 or down gear ratio.
1981-1986 Chevrolet C20 3/4 Ton Pickup (2WD)
1981-1986 GMC C25/ C2500 3/4 Ton Pickup (2WD)
1987-1989 Chevrolet R20 R2500 3/4 Ton Pickup (2WD)
1987-1989 GMC R2500 ¾ Ton Pickup (2wd)
1981-1986 Chevrolet K20 ¾ Ton Pickup (4wd)
1981-1986 GMC K25 K2500 ¾ Ton Pickup (4wd)
1987 Chevrolet V20 V2500 ¾ Ton Pickup (4wd)
1987 GMC V2500 ¾ Ton Pickup (4wd)
1981-1996 Chevrolet G20 G2500 3/4 Ton
1981-1996 Chevrolet G30 G35 G3500 1 Ton
1981-1996 GMC G20 G2500 3/4 Ton
1981-1996 GMC G30 G35 G3500 1 Ton
1981-1986 Chevrolet Suburban C20 C2500 ¾ Ton
1981-1986 Chevrolet Suburban K20 K2500 ¾ Ton
1987-1991 Chevrolet Suburban R20 R2500 ¾ Ton
1987-1991 Chevrolet Suburban V20 V2500 ¾ Ton
1988-1998 Chevrolet K1500 ½ Ton Pickup (4wd)
1990-1993 Chevrolet C1500 454SS Pickup
1988-1998 Chevrolet C2500 ¾ Ton Pickup (2wd)
1988-1998 Chevrolet K2500 ¾ Ton Pickup (2wd)
1992-1999 Chevrolet Suburban 2500 ¾ Ton
1992-1999 GMC Yukon XL 2500 ¾ Ton
1999-2013 Chevrolet Silverado 1500HD
1999-2013 GMC Sierra 1500HD
1999-2013 Chevrolet Silverado 2500
1999-2013 GMC Sierra 2500
2003-2009 Hummer H2
2006-2009 Chevrolet Trailblazer SS
2008-2009 Saab 9-7x Aero
2005-2006 Chevrolet SSR
2007-2009 Chevrolet Avalanche 2500 ¾ Ton
2014-2021 Chevrolet Silverado 1500 with 3.08 or 3.23 Gear Ratio
2014-2021 GMC Sierra 1500 with 3.08 or 3.23 Gear Ratio
2015-2021 Chevrolet Tahoe with 3.08 or 3.23 Gear Ratio
2015-2021 GMC Yukon with 3.08 or 3.23 Gear Ratio
2015-2021 Chevrolet Suburban with 3.08 or 3.23 Gear Ratio
2015-2021 GMC Yukon XL with 3.08 or 3.23 Gear Ratio
2015-2021 Cadillac Escalade with 3.08 or 3.23 Gear Ratio
2015-2021 Cadillac Escalade ESV with 3.08 or 3.23 Gear Ratio
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Differential:
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GM 9.5"
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Gear Ratio:
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2.73 & up
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Axle Splines:
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33
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Ring Gear Bolts:
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12 (not included)
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Manufacturer:
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Nitro Gear & Axle
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Warranty:
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1 Year
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You'll want to check out this article on Overland Journal/Expedition Portal about the
benefits of installing a Nitro locker.
The Nitro Helical Worm Gear is a torque-sensitive mechanical limited-slip differential that uses worm gears and spur gears to dispense and distinguish input power between two drive wheels or front and back axles. This is a completely separate design from the common beveled spider gear designs seen in most of the automotive industry.
Just like any LSD, the Nitro Helical Worm Gear functions as a standard or open differential under normal driving conditions, allowing one wheel to spin faster or slower as necessary. When a wheel experiences a loss of traction, the gear separation forces start to take effect and distributes the torque to the high-traction wheel by increasing the helical-shaped gears mesh force until wheel spin is reduced or entirely stopped. Once the vehicle exits the low traction condition, the differential resumes normal operation.
What nice about the operation of a Nitro Helical Worm Gear LSD, is its characteristics; smooth, quiet and automatic. This LSD will engage without any driver awareness or require any action. It also has no wearable components and requires no maintenance, producing less time on the rack and more on the road.
Nitro Gear & Axle strives to provide the highest quality differential & axle components available. We take the steps necessary to ensure our parts are dependable. Our product range is continually growing to meet the needs of consumers for new ratios and Fits. At Nitro we know differentials, and know what it takes to provide you with high quality components.
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 WARNING:
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This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov
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- 1988-1999 Chevy & GMC K2500 (8 Lug Only)
- 1992-1999 Chevy & GMC K3500 (8 Lug Only)
- 1999-2019 Chevy Silverado 2500 2500HD & 3500HD
- 1999-2019 GMC Sierra 2500 2500HD & 3500HD
- 2003-2009 Hummer H2
- 2001- 2004 Chevy 1500HD 1500 HD
- 1992-2013 Chevy Suburban 3/4 Ton 2500
- 1992-1999 GMC Suburban 3/4 Ton 2500
- 2000-2013 GMC Yukon XL 3/4 Ton 2500
- 2006-2008 Dodge Ram 1500 4x4 Mega Cab
- 2003-2007 Dodge Ram 2500 & 3500 4x4 (Requires spacer)
- 2007-2019 Dodge Ram 2500 & 3500 4x4
*All Nitro Gear & Axle brand products are warrantied to be free of manufacturer defects for the specified period. Warranty requests must be made by the original purchaser and submitted by the dealer purchased from. Any parts sent for warranty consideration must be pre-approved and shipped prepaid freight to our facility with copy of RGA for our inspection & determination. We will not pay for labor, shipping cost, loss of revenue or perishable goods, commercial losses, costs of telephone calls, shipping or general inconvenience. This is our only warranty expressed or implied. Unauthorized warranty returns may be refused. Warranty generally covers MFG defects in material or workmanship. Abuse, overloading, improper lubrication, misuse, commercial or competition use voids warranty. Normal characteristics are not warrantable, such as Gear whine. Minor cosmetic flaws, dings, burrs from shipping or manufacturing, are not considered defect, it is installer responsibility to address these at time of install. Customer is responsible for shipping charges if warranty is granted. Warranty is for the original purchaser/user, is not transferable. Warranty covers one replacement or credit solely at our discretion. Warranty determinations are at our sole discretion.
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