MAximum Allison 1000 Transmission, LB7 LLY LBZ LMM LML 2001-2016

Allison 1000 pre-built transmissions

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016


Allison 1000 pre-built transmissions 

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016


Price Range:   $3,599.00 - $6,599.00
Year: 
Series: 
2WD or 4WD: 
Rebuild / Upgrade my unit or pay core ($1400): 
Select Options
Merchant Automotive has a long history of building transmissions for customers from all over the country who depend on their truck for many types of applications. The components in the Maximum Transmissions were selected specifically based on our experience working exclusively on the GM Duramax trucks with an Allison transmission.


Why the Work Series?

If you depend on your truck to be there when it counts, the Maximum Work Series Transmission is for you!

Designed to optimize the potential of the Allison transmission even with additional power. Still maintains the smoothness of a stock transmission for everyday use with increased holding capacity when it counts the most.


Transmission includes

  • C1-C5 frictions with improved material
  • C1-C5 Steels
  • Hydraulic improvements to increase and maintain line pressure which increase clutch pack clamping force and improves convertor holding power.
  • Smoother apply into drive from park or reverse
  • Increased C2 clutch apply pressure improves 5th gear holding capacity
  • Complete gasket and seal kit
  • All new genuine Allison Torrington bearings
  • Select bushings common for wear
  • Deep pan (increases capacity)
  • Allison spin on filter
  • New style deep pan filter with increased filtration capacity and lower flow resctriction
  • Filter lock to ensure filter maintains seal preventing leaks and pressure loss
  • Genuine Allison Pressure Switch, latest design for maximum durability
  • Wire harness connector body and seal to repair common issues and prevent leaks
TCS Billet Single Disc Converter
  • Transfer MORE POWER to the ground with improved torque efficiency
  • Fully furnace brazed pump and turbine assemble\Steel drive splines
  • Heavy Duty Torrington enclosed needle bearings
  • Electronically balanced
  • Lower operating transmission temperatures
  • Numerous stall speed combinations available to best suit your vehicle and driving habits
  • Single disc lock-up design using Raybestos clutch linings
  • Increase fuel mileage 1 to 3 mpg in most cases
  • Billet steel front cover

MAximum Valve Body
  • MAximum Valve Bodies are disassembled and ultrasonic cleaned to remove all debris.
  • Upgraded to support increased line pressure.
  • Improvements for smoother apply into Drive from Park or Reverse.
  • New Genuine Allison Pressure Switch.
  • New Genuine Allison Wire Harness.
  • Dyno tested to ensure quality control standards

Fluid
  • Transmission will be shipped with 24 Quarts (6 Gallons) of CAM2, Dexron VI, Full Synthetic, Automatic Transmission Fluid
  • Trusted ATF DEX VI that Merchant Automotive uses in our service shop
Features of CAM2
  • Lower Foaming
  • Excellent Oxidation Stability
  • Better Protection against Pitting
  • Highly Shear Stable
  • Fully Synthetic Formulation

Looking for even more?

Look no further then our Maximum Pro Series. We take the proven reliability of the Work Series and increase capacity even more with additional clutch apply area, heavy duty friction material, and additional hydraulic pressure to ensure Maximum holding capacity.

Designed for use with engines modified above stock, or aftermarket components (proper tuning and gearing required) .


<: Fitment Chevrolet GMC Chevy 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 Duramax 6.6l GM 3/4 1 ton  :>
Merchant Automotive has a long history of building transmissions for customers from all over the country who depend on their truck for many types of applications. The components in the Maximum Transmissions were selected specifically based on our experience working exclusively on the GM Duramax trucks with an Allison transmission.


Why the Pro Series?

Designed to optimize the potential of the Allison transmission even with additional power. We take the proven reliability of the Work Series and increase capacity even more with additional clutch apply area, heavy duty friction material, and additional hydraulic pressure to ensure Maximum holding capacity.For use with engines modified above stock, or aftermarket components (proper tuning and gearing required).


Transmission includes

  • C1-C5 frictions with improved material and increased apply area
  • C1-C5 Steels
  • LML pistons and springs decreases deflection of C3 apply plate
  • Hydraulic improvements to increase and maintain line pressure which increase clutch pack clamping force and improves convertor holding power.
  • Smoother apply into drive from park or reverse
  • Increased C2 clutch apply pressure improves 5th gear holding capacity
  • Complete gasket and seal kit
  • All new genuine Allison Torrington bearings
  • Select bushings common for wear
  • Deep pan (increases capacity)
  • Allison spin on filter
  • New style deep pan filter with increased filtration capacity and lower flow resctriction
  • Filter lock to ensure filter maintains seal preventing leaks and pressure loss
  • Genuine Allison Pressure Switch, latest design for maximum durability
  • Wire harness connector body and seal to repair common issues and prevent leaks
TCS Billet Triple Disc Converter
  • Transfer MORE POWER to the ground with improved torque efficiency
  • Fully furnace brazed pump and turbine assemble\Steel drive splines
  • Heavy Duty Torrington enclosed needle bearings
  • Electronically balanced
  • Lower operating transmission temperatures
  • Numerous stall speed combinations available to best suit your vehicle and driving habits
  • Increase fuel mileage 1 to 3 mpg in most cases
  • Billet steel front cover

MAximum Valve Body
  • MAximum Valve Bodies are disassembled and ultrasonic cleaned to remove all debris.
  • Upgraded to support increased line pressure.
  • Improvements for smoother apply into Drive from Park or Reverse.
  • New Genuine Allison Pressure Switch.
  • New Genuine Allison Wire Harness.
  • Dyno tested to ensure quality control standards

Fluid
  • Transmission will be shipped with 24 Quarts (6 Gallons) of CAM2, Dexron VI, Full Synthetic, Automatic Transmission Fluid
  • Trusted ATF DEX VI that Merchant Automotive uses in our service shop
Features of CAM2
  • Lower Foaming
  • Excellent Oxidation Stability
  • Better Protection against Pitting
  • Highly Shear Stable
  • Fully Synthetic Formulation
Best way to return your core?

Your transmission will be shipped to you by UPS freight carrier. We can arrange to have your core picked up and returned to us for a convenient and affordable rate. Once your order is shipped, we will reach out to you by email with the details. The cost is simply subtracted from your core refund.

What if my transmission has damage or is missing parts, will I still get my core refund?

Your transmission must match the product purchased (model and year) and be assembled. A complete good transmission will get you a full core refund. However, we understand that you may have some missing parts and/or damage and we would like to get you as much of a refund as we can for the good usable parts.

Below are examples of items that may reduce the maximum credit:

Damaged or missing bell housing $300
Damaged or missing rear housing $300
Damaged or missing planetary $600
Unassembled core $200
Missing convertor $200

These are just some examples and will allow us to give you partial credit for a core that is not complete or has damage
 Average Rating:  5 Star Rating
5.0
 based on 4 Customer Reviews  
Write A Review
   AWSOME!!!!! Transmission made better, June 15, 2018  By David (Manassas, VA)
It was a very sad day when I called Charlie at MA to order a replacement Allison trans, but after talking with him I soon realized that I would be happy with this upgrade. Now I've owned my 2005 Silverado for 8 years and I have to say so far this new Work series Allison is smooth and strong feeling. Also a very important part in deciding who gets your business when you do purchase a replacement trans is 1. Support. 2. Quality. 3. Integrity. Now 2 out of three is good, but 3 out of three is even better, and that's what I experienced with MA.
MA also went the extra-mile to assist me since I broke down while on vacation out of state. Whether it be talking with the installers at the repair shop or help with locating a reputable shop. These guys are there for you at every step of the way. Very Refreshing. So great products- great people - great company. If you find yourself down and out ( like me ) you may want these guys and there products on your side, I know I did. Kudos to Merchant Automotive.
P.S. Thanks Charlie
   Fantastic Value, May 23, 2018  By Edouard Duroux (Eustis, FL)
This is a great option for those folks who need a reliable rebuilt transmission. I changed it myself, but be forewarned, doing so is not for the fainthearted. However it's great to have a reliable team of mechanics at Merchant Automotive to call upon for technical support and their Iphone app is superb and contains all the torque settings you'll require. For those considering doing this yourself, if at all possible, using a truck lift and transmission hoist would make the job a whole lot easier, but it is possible to use axle stands, blocks, engine hoist and floor jacks to do the job as I did. A transmission floor jack is an absolute must. The cheap 800 lb one from Harbor Freight did the job, but make sure you use a strong ratchet strap to secure the transmission to the jack pad. Other than that I would recommend having a 12 ton bottle jack or similar, because once you drop the transmission from the truck you'll need to raise the truck chassis another 12 or so inches in order to swap out the transmission. Of course having a buddy to help is always welcome, but it is possible as in my case for one guy to do the job. The most awkward part of the job, being the removal and re-installation of the transfer case due to the 90 lbs or so in weight and it's desire to twist.
   Only Quality Products and Expert Service from Merchant Automotive!, February 24, 2018  By MIKE (White Lake, MI)
Great product and great quality. As expected, nothing but the best. Comes with EVERYTHING needed for self install and the guys are always going the extra mile to help in any way they can.
   Work series in a 2005 LLY CC/LB 4x4, February 1, 2018  By MIKE (CHAGRIN FALLS, OH)
Great install. Straight forward. All needed items for install were included. Truck has 250k miles on it when I did the trans with new t-case and rebalanced shafts. What a difference. After a few hundred miles now... it shifts great, drives smooth, no more vibrations. Merchant Automotive was a great help as the project developed. And work series pre assembled unit a great value if you able to swap it in yourself.
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