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Description
Merchant Automotive 10381 Transfer Case Upgrade with Drain PlugsThe Merchant Automotive 10381 Transfer Case Upgrade with Drain Plugs for your 01 07 GM 6. 6L Duramax is the best upgrade you can make to your GM transfer case (model 136, 146, 246, 261, 261HD, 263HD, 263XHD, 261XHD) to prevent the ever increasing problem of pump rub. What is pump rub? The GM transfer cases use a gear pump inside the case that is driven off the mainshaft. The pump forces oil to the planetary as well as the drive sprocket sleeve.
The Merchant Automotive 10381 Transfer Case Upgrade with Drain Plugs for your 01-07 GM 6.6L Duramax is the best upgrade you can make to your GM transfer case (model 136, 146, 246, 261, 261HD, 263HD, 263XHD, 261XHD) to prevent the ever increasing problem of pump rub.What is pump rub?
The GM transfer cases use a gear pump inside the case that is driven off the mainshaft. The pump forces oil to the planetary as well as the drive sprocket sleeve. Because the pump is driven by the shaft, the housing of the pump must 'float' in the rear housing. There are 5 tabs around the housing that fit into spots in the rear housing to position the pump. Over time, the pump can start to wear on the rear housing. GM installed a spring steel clip in the housing intended to prevent wear but the clip can break and render useless
Being that the pump housing is aluminum and is a harder material then the magnesium rear housing, it can wear a hole in the rear housing and cause a very small leak. This leak is high enough in the case that it typically will not leak when vehicle is not moving and therefore not leaving any drops on the ground. Typically the condition is not found until there is transfer case damage from running the case out of fluid.With installation of this kit, you will have a LIMITED LIFETIME WARRANTY against pump rub.
Included Components:
- Merchant Automotive billet transfer case pump housing
- Transfer case adapter gasket at trans
- RTV Silicone
- Blue Threadlock
- Magnetic Drain Plugs
- Merchant Automotive sticker
|
Application Guide |
||
|
Year |
Model |
Transfer Case Model Number |
|
1998-2007 |
GM Silverado/Sierra - 1500, 1500HD, 2500, 2500HD, 3500 |
NP246, NP261HD, NP263HD, NP261XHD, NP263XHD |
|
1998-2003 |
Blazer / Jimmy |
NP236 |
|
1999-2005 |
Astro/Safari |
NP136 |
|
1999-2007 |
Escalade |
NP246, NP149 |
|
2002-2007 |
Avalanche 1500/2500 |
NP246, NP261, NP263, NP263HD |
|
1998-2007 |
Suburban/Yukon/Tahoe/Yukon XL 1500/2500 |
NP246 |
Frequently Asked Questions:
What do I do with the OEM anti rattle clip when installing this upgrade?
You can discard the factory clip during installation of this kit. Its been designed to work with the clip removed.
What other parts will I need to install this upgrade kit?
We tried to make the kit all inclusive for a basic installation. This is taking into consideration of course that its being installed as preventative measures. If its being installed as part of a repair or after pump rub has occurred, there is no real way to know the extent of the damage inside the case until it is torn down. Most times, as long as the case has not run out of fluid, it can usually be repaired with a new rear housing and seal and prevented from ever happening again using the upgrade kit. Regardless of the reason for installing this upgrade, you will need to refill the transfer case with oil. We recommend our Performance Transfer Case Oil for use in ALL transfer cases.
WARRANTY INFO:
Lifetime
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
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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
4.9 ★★★★★
Based on 824 reviews
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Product Reviews
★★★★★ 3
There are better books out there
Format: Paperback
I knew so much of what I read that I stopped reading 2/3 into the book. This is an average book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2022
★★★★★ 5
Great book nice addition to howe library
Format: Paperback
The kid i bought it for loves it and rereads often. The paper is the nice shiny kind and colorful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
★★★★★ 5
Another glimpse of the boy-behind-the-bat, with humor and heart; 4.5 stars
Format: Kindle
1st Line: "This is Gotham City."
Review: This new graphic novel, of a pre-Batman Bruce Wayne as a kid, opens in a Gotham City already all but decimated by crime and corruption. But with all its horrors, the worst of them for the young, rich, highly-intelligent but otherwise nerdy Bruce Wayne, orphaned after the murders of his parents, is none other than the Gotham Preparatory School for the Really, Really Gifted - his middle school. Here, all the students have some form of super power or another (The Flash, Wonder Woman, Superman, Penguin, Catwoman, and more - all started off in middle grade here) ... except for Bruce, who only got into the school because his parents funded the building of it before their deaths, and remains a target for bullies for not having any powers of his own. But when fellow student Jack Napier, himself having no super powers except for conning his way into the school, begins bullying Bruce's friend, elementary student Dick Grayson, Bruce becomes determined to strike back - thus beginning his ascent to a career as a vigilante, even as his loyal butler Alfred and the school's vice-principal forbid it. But will Bruce get it together in time to foil Jack's plans for the Crime of the Semester? And what of Bane, Jack's new sidekick, who would be a formidable foe even for someone with superpowers?
Bruce Wayne: Not Super is terrific; a comedic look at the young, super-smart yet geeky Bruce completely out of his element as a young kid, formerly with the attention span of a goldfish, who may have finally found his calling. Also nice are the glimpses of a number of future DC superhero icons in their youth, but the story really does belong to the humor of Bruce wanting to save his city, agreeing to take a hyperactive Robin in tow as his sidekick, with no knowledge of how to fight and an arsenal of weapons thrown together in minutes - and potentially of harm more to the user than the bad guy - all while Alfred says no and remains in constant threat of sending the future Batman to his room. The poor kid, after all, can't even put a bat costume together; in it, he's mistaken for everything from a badger to a rat to even a prairie dog. Bruce pushes past it all, his pluck and determination to save Gotham City one villain at a time his true calling, and among writer Stuart Gibbs glib and funny humor and Berat Pekmezci's bursting-with-color art, the very basic but heartfelt beginnings of the boy who'd grow to become The Bat shines through. It's really good. So good, I already itch for a sequel. 4.5/5 stars
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Reviewed in the United States on March 14, 2023
★★★★★ 4
Fun story with familiar characters
Format: Paperback
4 stars = Great! Might re-read.
This was fun! I enjoyed the illustrations and getting to scan the crowd scenes for more DC characters. I enjoyed Bruce's journey. I didn't love the portrayal of Clark Kent here, but the rest of this was fun. I would definitely read more of these if there are going to be sequels.
There's a one-star review here that is completely on target in their assessment of some of the liberties taken in the book. Buyer/reader will have to decide if those observations will lead you to skip this one or if you can set aside those internal inconsistencies to accept the story as is.
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Reviewed in the United States on April 15, 2023
★★★★★ 5
Fun for kids and those kids at heart!
Format: Paperback
When I was a kid around 8 or 9 years old, we would go to an outdoor theatre, a special treat. I remember the old 1960's era Batman movies playing on the screen. It was fun, exciting, heroic...all those things that made it pure enjoyment. When I think of recent Batman movies that have turned dark, deadly, desperate, all the fun has gone out of those experiences and I simply don't watch those movies. This is simply a long way of saying that this book, Bruce Wayne: Not Super, brought back all the fun I experienced as a kid. Here we have our hero, who doesn't think he is, who compares himself to everyone around him with supernatural abilities, and begins to grow desperate. The background story is essentially the same: dead parents, rotten town, etc. But we see life from his perspective and can root for him all the way. He goofs up, makes lots of mistakes and this makes him even more lovable. This book is prefect for readers young and old, and if this made into a movie, I guarantee you that I would watch it. Highly recommended.
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Reviewed in the United States on April 4, 2024
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