Does a 2001 chevy Silverado have an Allison Transmission in it?
The Allison trans is available in the new trucks, because even the relatively bulletproof 4L80-E automatic isn’t rated to handle the 455 foot-pounds or 520 foot-pounds of torque generated by the Vortec 8100 and Duramax diesel V8s, respectively.
What transmission is in a 2002 chevy Silverado 2500hd Duramax?
Allison automatic transmission
This engine is mated to a 5-speed Allison automatic transmission.
What should I expect from an 8.1L Silverado Sierra?
Keep some oil handy mine use to eat about a qt every oil change and I was told this was normal. The 8.1 generally would generally hold the rpms fairly well. Now on the 6.0 engines…you got let them get up in the rpms for power…4k would be normal on steep long slopes.
Which is better a trans or an Allison?
Actually the 4L85 should put more power to the ground as its has less loss compared to the allison. As far as I know both trans use torque management the same. For what its worth I have a Yukon XL and love how it pulls. Actually the 4L85 should put more power to the ground as its has less loss compared to the allison. Click to expand…
Can a Silverado Sierra shift without a tow / haul?
Without tow/haul engaged, the transmission will only shift between 4th, and 5th. With tow/haul engaged, it will use all the gears to downshift if it needs to. Powered by phpBB © phpBB Group.
What kind of pulling power does an Allison 8.1L have?
TM has little to do with pulling power, mostly for the transmission shifting and smoothness. In defense of the 8.1L, it is a decent long life engine that gave reasonable pulling power for Suburbans and pickups in the gasser class. Mine had the famous CSK and oil consumption even though it was pampered from the beginning.
Are there problems with 2001-2002 Allison transmissions?
Enter your ride HERE to be a part of this months Ride of the Month Challenge! I’m looking at a 2002 model with about 42k miles. It looks to be in great shape. My mechanic (who owns the same vehicle in an 03) told me that the 01-02 Allison’s are “notorious” for having problems.
What are towing expectations of a 8.1L 2500HD?
Then needed a pickup and have had a few 2500 pickups with 6.0 engines. As noted the 8.1 towing ability is very similar to the 6.0, at least in my view. The only real difference I noticed was in very low speeds the big block seemed to perform a little better. You want see much difference as another person said by moving to a 6.0 gas engine truck.
Can you tell the difference between A 2500HD and an ally 4×4?
I had a 2500HD 4×4 w/ 8100 & Ally for a few years and have owned a 2500 4×4 Sub w/ 8100 & 4L85e for over a decade. I eventually had the ecm in the truck tuned and had torque management removed, and it was definitely noticeble on the bottom end (couldn’t tell a difference in mpg).
Keep some oil handy mine use to eat about a qt every oil change and I was told this was normal. The 8.1 generally would generally hold the rpms fairly well. Now on the 6.0 engines…you got let them get up in the rpms for power…4k would be normal on steep long slopes.