Originally Posted by mattd
It's the second generation torqshift. It's related to the 5r110 but i suppose it could be viewed as a super heavy duty version of the 6r80. IIRC the answer to the Allison 1000 was the 5r110. IMO the 6r140 handles added power much better than the Allison 1000 with no upgrades. There are many people running around with 600+ hp on a stock transmission other than tuning changes
I agree that the 6R140 handles added power A LOT better that a Allison 1000, I actually feel the same about the 5R110 with a good torque converter.
However.....It's been my experience that the 2006 & up Allison 1000 will run longer in the 350/650 output range at max GCWR.
It's the second generation torqshift. It's related to the 5r110 but i suppose it could be viewed as a super heavy duty version of the 6r80. IIRC the answer to the Allison 1000 was the 5r110. IMO the 6r140 handles added power much better than the Allison 1000 with no upgrades. There are many people running around with 600+ hp on a stock transmission other than tuning changes
I agree that the 6R140 handles added power A LOT better that a Allison 1000, I actually feel the same about the 5R110 with a good torque converter.
However.....It's been my experience that the 2006 & up Allison 1000 will run longer in the 350/650 output range at max GCWR.