Nitro Gear & Axle Transfer Case Output Seal NP231 with Slip Yoke Eliminator

Sale Price $13.33
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Transfer Case Output Seal, NP208, NP229J, NP231, NP241

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.


Inside Diameter: 1.875"

Outside Diameter: 2.75"


1992-2001 Hummer

2002-2004, 2006 Hummer H1

1980-1988 AMC Eagle

1987-1994 Chevrolet Blazer

1981-1986 Chevrolet K10

1981-1986 Chevrolet K10 Suburban

1988-1997 Chevrolet K1500

1992-1997 Chevrolet K1500 Suburban

1981-1986 Chevrolet K20

1981-1986 Chevrolet K20 Suburban

1988-1997 Chevrolet K2500

1992-1997 Chevrolet K2500 Suburban

1988-1989 Chevrolet K3500

1981-1986 Chevrolet K5 Blazer

1995-1997 Chevrolet Tahoe

1987 Chevrolet V10

1987-1988 Chevrolet V10 Suburban

1989-1991 Chevrolet V1500 Suburban

1987 Chevrolet V20

1987-1988 Chevrolet V20 Suburban

1989-1991 Chevrolet V2500 Suburban

2007-2009 Chrysler Aspen

2000-2007 Dodge Dakota

1998-2009 Dodge Durango

1998-2009 Dodge Ram 1500

1994-2002 Dodge Ram 2500

1994-2002 Dodge Ram 3500

1980-1993 Dodge Ramcharger

1986-1989 Dodge W100

1980-1993 Dodge W150

1980 Dodge W200

1981-1993 Dodge W250

1980 Dodge W300

1980-1990 Ford Bronco

1980-1983 Ford F-100

1980-1991 Ford F-150

1980-1990 Ford F-250

1980-1990 Ford F-350

1981-1991 GMC Jimmy

1980-1986, 1988-1997 GMC K1500

1980-1986, 1992-1997 GMC K1500 Suburban

1980-1986, 1988-1997 GMC K2500

1980-1986, 1992-1997 GMC K2500 Suburban

1988-1989 GMC K3500

1987 GMC V1500

1987-1991 GMC V1500 Suburban

1987 GMC V2500

1987-1991 GMC V2500 Suburban

1992-1997 GMC Yukon

1980-1986 Jeep CJ7

1980-2001 Jeep Cherokee

1986-1992 Jeep Comanche

1993-2004 Jeep Grand Cherokee

1984-1991, 1993 Jeep Grand Wagoneer

1980-1988 Jeep J10

1980-1988 Jeep J20

2002-2007 Jeep Liberty

2003-2006 Jeep TJ

1980-1990 Jeep Wagoneer

2003-2016 Jeep Wrangler

2006-2007 Mitsubishi Raider

1980-1981 Plymouth Trailduster


*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.

In addition to the above conditions, see special notes for these products:

Ring & Pinion - Warrantied against manufacturing defects. 2 years from date of purchase. Must provide set-up specs.

Chromoly front Axles, Excalibur Joints, 30/30 Birfield kits - Warrantied against manufacturing defects for the life of the vehicle. These products are also covered for Breakage. The Shaft / joint must be BROKEN. Wear, twisting, bending are not warrantable. Damages caused by failure of other parts are not warrantable, for example broken U-joint (other than Nitro Excalibur) causing damage to Axle ears.

Rear Chromoly Axles - Warrantied against manufacturing defects for 5 years. These products are also covered for Breakage. The Shaft must be BROKEN. Worn, twisted, or bent axles are not warrantable.


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:


Box Weight: 1 lb

Box Dimensions: 1 x 1 x 1 in

Shopper Approved Review

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