Are Allison transmissions any good?
Emily Ross
Published Jan 09, 2026
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.
How many miles can you get out of an Allison Transmission?
These trucks can (and do) regularly hit 200,000 miles. The truck and drivetrain will only last as long as you maintain it, though. There are parts that fail, just like anything else. But regular maintenance (fluid changes, body upkeep, hard part care) will help you have a very long relationship with your truck.
Are Allison transmissions reliable?
RELIABILITY. Allison fully automatic transmissions (“Allison Automatics”) have a global reputation for quality, reliability and durability because we engineer and build them to last. That's why Allison Automatic-equipped vehicles have been shown to cost less to operate than comparable competitively-equipped vehicles.
Are Allison 1000 Transmission good?
Allison 1000, Six-Speed ('06-'07) The Duramax/Allison combo is arguably one of the best powertrain duos in the 35-year history of diesel pickups.
Who builds Allison Transmission?
It will be built in-house by General Motors and simply features Allison branding. The transmission isn't closely related to the 10-speed automatic found in the 2019 Silverado 1500, as far as we can tell, with General Motors describing the Allison-branded unit as “all-new.”
34 related questions foundDoes Chevy own Allison Transmission?
Purchased by The Carlyle Group and Onex Corp. General Motors Corp. announced on June 28 it will sell its Allison Transmission commercial and military business to The Carlyle Group and Onex Corp.
Does Chevy still use Allison transmissions?
The Allison 1000 6-speed transmission has been in GM's 2500 & 3500 trucks since 2006, but that's changing for the upcoming 2020 trucks. Allison Transmission was spun off into its own company in 2007, when General Motor sold the company.
What is the difference between Allison 1000 and 2000?
Registered. In the beginning it was more clear-cut that 1000 Series were Close Ratio spread and 2000 Series had a Wide Ratio spread (the difference being in the P3 planetary gear ratio).
How strong is the Allison 1000?
Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb⋅ft (840 N⋅m) of torque. This rating has increased as the transmission was updated several times, to stand at 765 lb⋅ft (1,037 N⋅m) by 2011 in GM truck applications.
Are all Allison 1000 transmissions the same?
no they are not the same. They have some different internal hard parts.
Is the Allison 2000 a good transmission?
the 2000 series is a nice transmission, its still run in many of the newest busses. in most cases it will be limited to 5 speed, however allison can unl;ock the 6th gear if you need a taller over-drive gear... the 2000 series is a nice transmission, its still run in many of the newest busses.
How much HP can an Allison 3000 handle?
Allison Transmission's 3000 Series is designed for medium-duty commercial vehicles and is engineered to adapt and operate efficiently in a variety of applications. The 3000 Series includes close or wide ratio gearing and a maximum rating of 336 kW (450 hp).
How many miles will Allison 1000 transmission last?
Registered. 3 miles or 300k miles if it starts to slip your done.
What is considered high mileage for a diesel?
If used, any pickup truck equipped with a Cummins or Duramax engine that reaches 350 thousand miles is considered high mileage according to Prosource Diesel. For a Powerstroke diesel engine, 350,000 miles or more is regarded as well as high mileage.
How many miles will a Duramax 6.6 last?
The Duramax™ 6.6L V8 Turbo Diesel Engine is sold with a warranty of 100,000 miles/160,000 kilometers. The Duramax™ has been tested to survive upwards of 200,000 miles/320,000 kilometers. The Duramax™ powertrain is designed for reliability, peak horsepower and torque within its design limits.
What type of Allison Transmission do I have?
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.
Can you put an Allison Transmission on a 5.3 Vortec?
The allison has never been mated to a 5.3L or even an 6.0L, the ally has only been behind a 8.1L or a Duramax and only in a 2500HD or 3500. The Ally is a HD tranny and takes more HP just to turn it beacuse of the larger torque converter and larger heavier gears along with higher pump output pressure.
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”.
What is an Allison 2000 transmission?
Designed for light commercial vehicles in both on-highway and public transport applications, Allison Transmission's 1000 and 2000 Series are rated up to a maximum of 224 kW (300 hp) and have up to six speeds available, including two overdrives.
Is the Allison 10 speed really an Allison?
Equipped with the Allison branded 10-speed transmission, the 2020 Silverado HD will debut in February 2019 .
What year did GM stop using Allison transmissions?
Following Allison's untimely death in 1928, General Motors acquired Allison Transmission in a partnership that would last almost eighty years. In 2007, a cash-starved GM sold Allison to Onex Corporation and The Carlyle Group for $5.6 billion, a move that preceded GM's bankruptcy reorganization in 2009.
Does Allison Transmission make a 10 speed?
With the introduction of the 2020 light truck line up's a new Allison is now available for purchase, a 10 speed known as the 10L1000.
When did the 10 speed Allison Transmission come out?
Equipped with the Allison branded 10-speed transmission, the 2020 Sierra will debut in February 2019 .