How do I know if my Duramax has Allison transmission?
Emily Ross
Published Jan 12, 2026
every duramax in a GM truck has an allison. look under the truck at the tranny, it should have a red spin on filter on it.
How can I tell if I have a Allison transmission?
Transmission serial numbers can be found on the Transmission data plate. The serial number of an Allison transmission may be located on the transmission data plate. This can be located on the side of the transmission. This data plate is usually found on the lower rear face of the rear housing.
Do all Duramax come with Allison transmission?
Registered. They all came with the allison 5spd 01-early 05 models and allison 6 spd on the newer modes i believe late 05-08, very few came with a zf6 manual.
What transmission does my Duramax have?
Allison 1000 Automatic Transmission
The Allison 1000 was first produced in 1999 by Allison Transmissions. In 2001, GM mated the Allison to its new 6.6L Duramax. The Allison 1000 is arguably one of the most desirable automatic transmissions in its category.
Which GM trucks have Allison transmission?
“Allison Transmission and GM have a long history of collaboration and innovation. Recently, Allison Transmission announced production of the 6-speed fully automatic transmission, designed for Chevrolet's Silverado 4500 HD, 5500 HD and 6500 HD medium-duty trucks.”
38 related questions foundWhat year Duramax has the Allison Transmission?
There's an interesting thing about early Chevrolet Silverado and GMC Sierra trucks equipped with the Duramax diesel engine and Allison transmission. From 2001-2005, these trucks were equipped with a five-speed Allison automatic transmission.
What Allison Transmission is in the Duramax diesel?
The Allison 1000 six-speed transmission of today is the only transmission that can keep up with Chevrolet's Duramax® Turbo-Diesel engine option. Using adaptive learning technology, Allison transmissions provide a comfortable driving experience and help you avoid any rough shifting experiences.
Are all Allison transmissions automatic?
Allison transmissions are the only fully automatic models on the market. Through the years, Allison has updated and upgraded their technology, which they call “Generations”.
Does GMC have Allison Transmission?
“Trailering is the most important consideration for Sierra Heavy Duty customers and the new features and technologies, including the Allison fully automatic transmission make it easier than ever to hitch a trailer and tow it confidently,” said Jaclyn McQuaid, GMC Vehicle Chief Engineer, Heavy Duty Trucks.
Did the Duramax come with a manual transmission?
The Duramax was the first diesel to drop the stick shift. The GM trucks had the manual transmission option until the new body style came in the middle of the 2007 model year. The powerhouses you can find with the stick include the LB7, LLY, and LBZ engines.
Where is the Allison Transmission built?
Allison products are made right here in the U.S.A., and we're proud to say that all of our propulsion solutions for the North American transit market— fully automatic conventional and electric hybrid solutions—are manufactured at our Indianapolis, Indiana headquarters.
Does LB7 Duramax have Allison Transmission?
While today, all Duramax trucks are paired with the Allison transmission, LB7 Duramax trucks also had an available ZF 6-speed manual transmission option. Producing 235-300 horsepower and 500-520 lb/ft of torque, the LB7 Duramax was a beast.
Did Allison make a manual transmission?
Since Allison Automatics use a torque converter instead of a dry clutch, irritating clutch repairs and replacements that come with manual and automated manual transmissions (AMTs) are eliminated. In fact, routine oil and filter changes are the only regular preventive maintenance requirements for an Allison Automatic.
What VIN number tells transmission?
Numbers 4 through 8 describe the car with such information as the model, body type, restraint system, transmission type and engine code. Number 9 is the check digit, which is used to detect invalid VINs.
What vehicles have an Allison Transmission?
- Chevrolet Silverado.
- Chevrolet Kodiak/GMC Topkick.
- GMC Sierra.
- Hummer H1.
- Chevrolet B-Series.
How do I know what Chevy transmission I have?
While there are no distinctive pans and bolt counts to make transmission identification simple, 4-speed manual transmissions can be generally identified by examining the side profile. The shape of the main housing will give a reasonably reliable indication of the transmission group to which your gearbox belongs.
Do GMC 2500 have Allison Transmission?
The GMC Sierra 2500 HD came equipped with the 4L60E transmission, 4L65E transmission and 4L80E transmission in early models. Later models got the 6L90 6-speed transmission, and the GMC Sierra 2500HD 6.6L Duramax Diesel had the Allison 1000 transmission.
Does the 2022 Duramax have an Allison Transmission?
Powertrain. Speaking of, under that huge aluminum hood you'll find the unchanged 6.6-liter Duramax diesel that is pumping out 445-horses, but a very strong 910-pound feet of torque. It has a 10-speed Allison automatic transmission and my review vehicle is a Z71 4-wheel drive.
Are Allison transmissions any good?
The proven performance and excellent improvements provided by Allison transmissions make them the superior choice for drivers. Pro Tip: Allison transmissions provide the best performance, highest reliability, and most efficient energy usage on the market today.
Are all Allison 1000 transmissions the same?
no they are not the same. They have some different internal hard parts.
What Allison transmission is in a 2012 Duramax?
“The Allison 1000 is a no-compromises transmission that has been highly integrated with the Duramax diesel to provide the unique performance characteristics of this heavy-duty powertrain.”
What year Duramax has the LBZ?
2006 – The coveted LBZ Duramax was introduced for the '06 model year and featured a number of improvements that enabled the engine to produce up to 360 hp and 650 lb-ft of torque.
Can you put an Allison Transmission in Ford?
No other pickup manufacturer can make the same claims! Putting an Allison Transmission in your Ford gives you a "Million Mile Solution". To get a conversion kit for your truck, identify the Allison Transmission you plan on using, and select from the options above to build your CA Conversions Allison Conversion Kit.
Who built Allison Transmission?
Of all of the companies that have made engines and engine components, two in particular symbolize some of the greatest technical and business achievements of the last hundred years. Allison Transmission and Rolls-Royce grew out of a firm founded by James A. Allison in 1915.
Is Allison a division of GM?
While it was founded as the Indianapolis Speedway Team Company, its name changed numerous times, first to the Allison Speedway Team Company, then the Allison Experimental Company and last as the Allison Engineering Company before becoming a division of General Motors.