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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
For Your Every Summer RSVP, with Code: SUMMER15
Description
Merchant Automotive 25910 Rear Transfer Case Housing & Output SealThe Merchant Automotive 25910 Rear Transfer Case Housing & Output Seal will replace the cracked rear housing in your 2001 2007 GM 6. 6L Duramax LB7 LLY LBZ. This Merchant Auto NP261XHD NP263XHD Transfer Case Housing is ideal if you need to replace the rear section of the transfer case on your GM Duramax diesel. This rear transfer case half is made of magnesium, which is superior to low cost aluminum knockoffs, under OEM specifications. To avoid and
The Merchant Automotive 25910 Rear Transfer Case Housing & Output Seal will replace the cracked rear housing in your 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ. This Merchant Auto NP261XHD/NP263XHD Transfer Case Housing is ideal if you need to replace the rear section of the transfer case on your GM Duramax diesel. This rear transfer case half is made of magnesium, which is superior to low-cost aluminum knockoffs, under OEM specifications. To avoid and fix cases that have been damaged by pump rub, this kit is a direct replacement and improvement over your factory housing. A driven sprocket support bearing and slip yoke bushing are already installed in this new NP261XHD/NP263XHD Transfer Case Housing.To completely update your transfer case, Merchant also offers a rear output seal and advises adding the Merchant Automotive Magnetic Drain Plug Kit. To make installation easier, you ca pick up the Merchant Automotive Performance Transfer Case Fluid. You will need two gallons to refill your transfer case. Ensure your new case is thoroughly protected, this fluid is designed specifically for heavy-duty transfer cases. The A13 Rear Output Seal, Magnetic Drain Plug Kit, and Performance Transfer Case Oil are available in the Related Items section below.
Features
- No Core Charge
- Cast To OEM Specs
- Direct-Fit Replacement
- Cast In Magnesium Alloy
- Includes Warranty Against Pump Rub
- Slip Yoke Pushing & Driven Sprocket Support Bearing Included
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Highly recommend!
Size: Fit for Silverado 2020-2025 GMC Sierra 2019-2121
It’s all metal! Even the arm that holds the phone!!! All metal!!!!! No cheap plastic! You can drill or clean and stick. 2 for mounting. No more breaking air vents and suction cups cheap plastic that falls off the window or rear view mirror holder that blocks your vision. This is definitely worth the money.
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Reviewed in the United States on March 14, 2026
★★★★★ 2
The concept is great, the item is sub par.
Size: Fit for Silverado 2020-2025 GMC Sierra 2019-2121
I bought this for a 2021 Silverado WT thinking I'd be able to screw this into the dash cubby as the adhesive wouldn't servive -50⁰ F Fairbanks winters. Beware, if you own this truck, you have to remove the entire dash assembly to include instrument cluster and infotainment system in order to screw this into the cubby. The cubby on this model is actually apart of the entire upper dash panel and cannot be removed separately as the instructions state.
I decided I'd give the adhesive pad a try until I bought some self tapping screws but the mount is not contoured like my cubby, therefore it badly rocks.
I don't recommend this to anyone with a 2021 Silverado WT unless they want to spend over 3 hours installing this.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Highly recommend
Size: Fit for Silverado 2020-2025 GMC Sierra 2019-2121
Great fit, looks awesome! Very easy to install !
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Affordable and well built
Size: Fit for Silverado 2020-2025 GMC Sierra 2019-2121
Perfect fit and well built, saved alot of money going with this!!!! Will be using for GoPros on hunting and camping trips.
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Reviewed in the United States on March 17, 2026
★★★★★ 3
Expected more for the price.
Size: Fit for Silverado 2020-2025 GMC Sierra 2019-2121
Arms are a bit short, and within a week, I could already feel the springs feeling a bit ridged. Holds well and does the job. Looks nice to!
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Reviewed in the United States on May 4, 2026