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MAximum Allison Transmission

10 Reviews
SKU: maximumtrans
$3,599.00 to $6,599.00

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$3,599.00 to $6,599.00

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Description

ALLISON TRANSMISSION OVERVIEW


The 5-speed and 6-speed Allison automatic transmissions backing the Duramax diesel engines in GM 2500HD and 3500 pickups is a smooth-shifting transmission that works very well in stock applications. But the factory Allison transmissions tend to have issues coping with heavy towing and hauling or even mild performance upgrades not to mention serious struggles with high performance modifications. As the go-to Duramax and Allison Specialists the team at Merchant Automotive developed the MAximum Transmission Work Series and Pro Series transmissions to provide a reliable alternative to factory rebuilds or replacements in 2001 to 2016 GM vehicles equipped with an Allison automatic transmission.


MAXIMUM WORK SERIES


The MAximum Transmission Work Series was designed for hard working Duramax owners and daily drivers that want more holding power than stock while maintaining the smooth performance characteristics of a stock Allison transmission. The precisely rebuilt Work Series Allison transmissions start with thoroughly tested and inspected Allison cores that are handled by transmission specialists in house at the Merchant Automotive facility in Zeeland, MI. Carefully selected and matched internal components including improved friction materials, hydraulic upgrades, and a dyno tested MAximum Series valve body are meticulously installed. A steel Allison deep sump transmission pan is used for additional fluid capacity along with a billet aluminum Merchant Automotive filter lock to make sure the filter does not come loose. A single disk billet torque converter is included to transfer the power from the Duramax diesel engine directly into the Allison transmission. Each Work Series MAximum Transmission is painted orange and comes completely assembled and is ready to install with 24 quarts of high quality fully synthetic CAM2 Dexron VI automatic transmission fluid to fill the transmission once it is installed.



MAXIMUM PRO SERIES 



For owners who are making more power, expect to make more power in the near future or plan to compete with their trucks the MAximum Pro Series transmission is the optimum choice. The Pro Series builds upon the Work Series foundation with additional enhancements to further increase holding capability and durability. Additional clutch apply area and heavy-duty friction material work together with even higher hydraulic pressure to handle high performance applications that stock transmissions can only dream of. It also includes all new bushings, bearings, and seals along with a high-performance dyno tested MAximum Series valve body. To further enhance the performance of the Pro Series MAximum Transmission the torque converter has been upgraded from the previous high-performance standard triple-disk billet torque converter to the pinnacle in diesel torque converter performance with a FIVE-DISK billet torque converter to channel the power from even highly modified Duramax diesel engines into the transmission without wavering. Like the Work Series, each Pro Series transmission is painted orange and comes completely assembled and is ready to install with 24 quarts of high quality fully synthetic CAM2 Dexron VI automatic transmission fluid to fill the transmission once it is installed. Optional billet input, intermediate and output shafts can be added to the Pro Series transmissions to increase power handling capabilities for high-powered competition use such as sled pulling and drag racing.


"We don't play horsepower rating games with our MAximum Transmissions; we just build high-quality transmissions with high-quality parts that hold up to common abuse!" Exclaims Eric Merchant Automotive Founder. He continues, "We can build a MAximum Transmission to hold up to any performance level a customer needs, I run one in Ol' Blue, our 1,700 horsepower UCC competition truck and we can build one for you too!"

Application

Configurations available for 2001-2016 Duramax Diesel applications.


2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel engines:

LB7, LLY, LBZ, LMM, LML

Years

2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016


CORE DEDUCTIONS

DAMAGE TYPE

DEDUCTION

Broken / Cracked Bell housing

$300.00

Main Case Damage

$100.00

Extension Housing Damage

$300.00

Missing - Torque Converter

$200.00

C2 Hub / Planetary Damage

$600.00

Broken Input/Output Shaft

$100.00

Pump / Stator Damage

$300.00

Rotating Drum

$200.00




Ratings & Reviews

10 Reviews

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Transmission looks as in picture!

Todd - | 07/24/2019 12:01:00 pm

Was very satisfied with the quality of the build. Installed a couple days of go put several hundred miles on it transmission shifts and drives great. This transmission is built in house so if you have any problems you deal with them directly which is nice.

Only Quality Products and Expert Service from Merchant Automotive!

MIKE - | 02/24/2018 12:01:00 pm

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.

AWSOME!!!!! Transmission made better

David - | 06/15/2018 12:01:00 pm

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.

Work series in a 2005 LLY CC/LB 4x4

MIKE - | 02/01/2018 12:01:00 pm

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.

Fantastic Value

Edouard Duroux - | 05/23/2018 12:01:00 pm

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.

Fantastic Value

Edouard Duroux - | 05/23/2018 12:01:00 pm

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.

Work series in a 2005 LLY CC LB 4x4

MIKE - | 01/02/2018 12:01:00 pm

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.

AWSOME!!!!! Transmission made better

David - | 06/15/2018 12:01:00 pm

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.

Transmission looks as in picture!

Todd - | 07/24/2019 12:01:00 pm

Was very satisfied with the quality of the build. Installed a couple days of go put several hundred miles on it transmission shifts and drives great. This transmission is built in house so if you have any problems you deal with them directly which is nice.