How can I tell if I have 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.
Do all 8.1 have Allison?
In the LT trim trucks the Allison was standard equipment behind the 8.1L engine. NO Chevrolet or GMC pick-up truck was ever built with an 8.1L engine, and the 4L80/4L85E transmission. If you chose a pick-up truck with the standard 6.0L gas engine it would come with a 5-speed manual as standard equipment.
How do I know if my Duramax has Allison Transmission?
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 often should Allison transmission fluid be changed?
Allison says the fluid is good for 100,000 miles.
Why are Allison transmissions so good?
Unlike manual and automated manual transmissions (AMTs), Allison Automatics have no power interrupts during shift changes. They make the best use of the engine’s horsepower and torque by delivering more of it to the wheels. … This not only saves time and money, it also provides maximum protection for the transmission.
Which transmission is better Aisin or 68RFE?
The 68RFE is not nearly as robust as the Aisin in any way, shape, or form. … While the Aisin’s overall ratio spread is 3.75-0.63, the 68RFE’s is only 3.23-. 0.63. The difference is the Aisin has a much deeper First (3.75:1) and Second (2.0:1) to maximize the 6.7L’s torque delivery for more low-end pulling power.
How much power can a Allison 1000 handle?
Allison 1000, Six-Speed (‘07.5-’10)
By the time the LMM-powered GMs hit the market, aftermarket tuning of the TCM had progressed enough to where the Allison could withstand 430 to 450-rwhp for extended periods of time—and 500-rwhp on occasion.
Is the 8.1 a good motor?
The 8.1 Vortec is named the “Workhorse” and this name is completely true. Overall, these engines are extremely reliable and are built to last beyond 250,000 miles. The Allison transmissions that most are coupled with are known to be some of the most popular/favorite transmissions out there.
How many miles per gallon does a 8.1 liter get?
On average, vehicles equipped with the 8.1 get less than 15 miles per gallon. You can make some changes to the way you operate your Chevrolet 8.1 to attempt to get better fuel mileage; however, you should not expect miracles.
What transmission is in a Duramax?
The Allison 1000 has been the standard automatic transmission for the Duramax diesel since its inception in 2001. At this time, transmission’s size, strength, and versatility far exceeded anything available from the Duramax’s direct competitors.
Can you get a manual Duramax?
The transmission is a bit of an oddity in that it is a four speed, overdrive transmission. … GM has not offered a manual transmission in a Duramax equipped Silverado/Sierra pickup since the 2006 model year.