How many gears does a 04 Duramax have?
LLY Duramax Specifications Chart
| Manufactured Years: | 2004-2006 |
|---|---|
| Transmission: | 2004-2005: 5-Speed Auto Allison Transmission 2006: 6-Speed Auto Allison Transmission |
| Vin Identification: (8th Digit) | 2 |
| Displacement: | 6.6 Liters or 403 Cubic Inches |
| Engine Weight: | 835 Lbs |
When to change the rear end gear ratio?
Switching your rear end gear ratio helps your gas mileage or improves your power! If you’re looking for better gas mileage, you want to switch to a higher gear ratio. If your looking for more power or performance, you would switch to a lower ratio.
How does the Allison Transmission work for Duramax?
The Allison’s external filter eliminates the need to frequently service the internal filter and greatly reduces maintenance time/cost. It also relies on adaptive technology which integrates the transmission with the engine control module to continuously monitor driver input and calculate ideal shift strategies for the particular driving conditions.
What are the transmission specs for a Duramax Diesel?
Allison 1000 Specs & Ratios. The Allison 1000 has been the standard automatic transmission for the Duramax diesel since its inception in 2001.
How much fluid does a Duramax Allison 1000 have?
* 6th gear available in 2006+ model years. Dexron-III (5 spd models) or Dexron-VI ATF (6 spd models), roughly 13 quart total fluid capacity and 7.4 quart refill capacity w/ filter change. The Allison’s obvious strength is its robust size, as the 1000 series transmission is designated for medium duty applications.
What’s the mileage on an Allison 8.1 diesel?
If it run the motor at a lower RPM than the 4L80 does in 4th gear then its even farther out of the TQ curve. Mine runs about 2200 RPM at 75 MPH. When it kicks down a gear and jumps to 3000 RPM it pulls like a pig. If the ally would put it down at 1800 RPM it would shift even more and likely get worse mileage.
Is the Allison 4L85E a good transaxle?
The 4L85Es can withstand a lot of power and are overall a good trans proven through many years. If I remember correctly about torque managment. TM has little to do with pulling power, mostly for the transmission shifting and smoothness.
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.
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…