Select the year of your Chevrolet Avalanche 1500:

Yukon Gear & Axle YMS3747 Mighty Seal
When it comes to maintaining your vehicle's performance, the Yukon Gear & Axle YMS3747 Mighty Seal is a top choice for those who want reliability and durability. Designed with precision in mind, this rear axle seal ensures a snug fit that helps keep your axle protected from dirt and moisture, ultimately extending its lifespan.
Features:
- Rear axle seal specifically designed for GM 9.5" axles
- Made with advanced manufacturing technologies for a tight seal
- Durable construction that stands up to wear and tear
Specifications:
- Color: Black
- Fitment: Specific Fit for various GM models
Customer Feedback:
"I installed the YMS3747 in my Silverado, and I couldn't be happier. The fit was perfect, and I feel more confident driving knowing my axle is well protected." - Mark T.
"This seal has held up great in my Avalanche. No leaks so far, and it was easy to install. Highly recommend!" - Lisa R.
Product Fitment:
Compatible with the following models:
- Chevrolet Avalanche 1500 (2002-2006)
- Chevrolet Avalanche 2500 (2002-2006)
- Chevrolet C/K 1500 (1988-1999)
- Chevrolet C/K 20 (1981-1986)
- Chevrolet C/K 2500 (1988-2000)
- Chevrolet Express (1996-2009)
- Chevrolet G30 (1983-1991)
- Chevrolet R/V 20 (1987)
- Chevrolet Silverado 1500 (2001-2007)
- Chevrolet Silverado 2500 (1999-2004)
- Chevrolet Suburban (1981-1999)
- GMC C/K 1500 (1988-1999)
- GMC C/K 2500 (1981-1986 & 1988-1997)
- GMC G3500 (1991-1992)
- GMC R2500 (1987)
- GMC Savana (1996-2009)
- GMC V2500 (1987)
- GMC Yukon (2001)
- GMC Yukon XL (2000-2009)
- Hummer H2 (2003-2009)
With the Yukon Gear & Axle YMS3747 Mighty Seal, you’re not just buying a part; you’re investing in peace of mind for your vehicle. Whether you're tackling tough terrain or just driving around town, this seal is built to last.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2002-2006 Chevrolet Avalanche 1500 |
Avalanche 1500 | 2002-2006 |
2002-2006 Chevrolet Avalanche 2500 |
Avalanche 2500 | 2002-2006 |
1988-1993 Chevrolet C1500 |
C1500 | 1988-1993 |
1981-1985 Chevrolet C20 |
C20 | 1981-1985 |
1994, 2000 Chevrolet C2500 |
C2500 | 1994, 2000 |
1996-2009 Chevrolet Express 1500 |
Express 1500 | 1996-2009 |
1983-1991 Chevrolet G30 |
G30 | 1983-1991 |
1981-1986 Chevrolet K10 Suburban |
K10 Suburban | 1981-1986 |
1994-1999 Chevrolet K1500 |
K1500 | 1994-1999 |
1995-1999 Chevrolet K1500 Suburban |
K1500 Suburban | 1995-1999 |
1986 Chevrolet K20 |
K20 | 1986 |
1988-1993, 1995-1999 Chevrolet K2500 |
K2500 | 1988-1993, 1995-1999 |
2001-2007 Chevrolet Silverado 1500 |
Silverado 1500 | 2001-2007 |
1999-2004 Chevrolet Silverado 2500 |
Silverado 2500 | 1999-2004 |
1987-1994 Chevrolet Suburban |
Suburban | 1987-1994 |
1987 Chevrolet V20 |
V20 | 1987 |
1988-1999 GMC C1500 |
C1500 | 1988-1999 |
1981-1986, 1988-1997 GMC C2500 |
C2500 | 1981-1986, 1988-1997 |
1991-1992 GMC G3500 |
G3500 | 1991-1992 |
1987 GMC R2500 |
R2500 | 1987 |
1996-2009 GMC Savana 1500 |
Savana 1500 | 1996-2009 |
1987 GMC V2500 |
V2500 | 1987 |
2001 GMC Yukon |
Yukon | 2001 |
2000-2009 GMC Yukon XL 1500 |
Yukon XL 1500 | 2000-2009 |
2003-2009 Hummer H2 |
H2 | 2003-2009 |
Upon notification of a warranty claim, Yukon shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product, replace it, or refund the purchase price.
This warranty does not cover, and Yukon shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the Yukon product)*. In addition, this warranty does not cover, and Yukon shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Yukon Gear & Axle products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-Yukon component.
This agreement offers you specific legal rights. You may also have other rights which vary from state to state.
YUKON WARRANTY BY PRODUCT
Spool
- Length:As long as original purchaser owns vehicle in which Spool is originally installed
- Notes:It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear.
- Length:As long as original purchaser owns vehicle in which Super Joint is originally installed
- Notes:Warranty coverage is for breakage of cross section or caps only. Failure by wear or galling is not covered.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturers defects.
- Length:Ten (10) Years
- Notes:Covers parts for ten years against manufacturing defects.
- Length:Ten (10) Years
- Notes:Covers parts for ten years against manufacturing defects.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:One (1) Year
- Notes:Warrantied against manufacturing defects for one (1) year.
- Length:One (1) Year
- Notes:Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter.
- Length:Six (6) Years
- Notes:All Zip Lockers come with a six (6) year warranty against manufacturer defect, including any collaterally damaged parts and associated labor, up to $2,000*, for the first two (2) years. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
- Length:One (1) Year
- Notes:Covers the replacement of the unit and any collaterally damaged parts and associated labor, up to $2,000. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:Includes BK, MK, PK, and YK. Covers parts for one year against manufacturing defects.
- Length:One (1) Year
- Notes:One year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
- Length:Limited Lifetime
- Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations
- Length:One (1) Year
- Notes:Warrantied against manufacturing defects for one (1) year. Longer warranty is available through purchase of a Y.E.S. plan.
Installation Instructions
Click to view the Installation Instructions here
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