Forum Discussion
ZR1
Dec 17, 2021Explorer
No doubt the Allison 1000 6 speed used with the Duramax was getting long in the tooth and at its max capacity as far as torque input was concerned. What is a real shame is that GM passed on the newly upgraded Allison designed 9 speed to push their in house 10 speed. I am sure it all had to do with money!
With that said and to be fair I don't believe any automatic transmissions is perfect when they are first introduced and I am sure the new 10 speed will fall into that category.
Check out the issues with the new GM 10 Speed/Duramax combo's:
https://nextgendiesel.com/blogs/transmissions-101/transmissions-101-allison-10l1000-problems-solutions-upgrades
At this point if you have this new transmission keep a close eye on it and get it in for warranty service BEFORE the warranty expires. If you plan on keeping the truck past the warranty you may want to consider an extended warranty or possibly perform some upgrades. Best of luck whatever path you take!
With that said and to be fair I don't believe any automatic transmissions is perfect when they are first introduced and I am sure the new 10 speed will fall into that category.
Check out the issues with the new GM 10 Speed/Duramax combo's:
https://nextgendiesel.com/blogs/transmissions-101/transmissions-101-allison-10l1000-problems-solutions-upgrades
At this point if you have this new transmission keep a close eye on it and get it in for warranty service BEFORE the warranty expires. If you plan on keeping the truck past the warranty you may want to consider an extended warranty or possibly perform some upgrades. Best of luck whatever path you take!
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