Quote Originally Posted by larry_arizona View Post
The GM heavy duty 10 speed is not related to the light duty 10 speed that Ford shares with GM.

The HD 10 speed is branded as an Allison, but it’s not made by Allison, it is made in house at GM with design coming from Allison.

I would avoid the Ram air suspension like the plague. Extremely problematic.


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Good to know about the air-ride.
I have test driven them and the air suspension make the HD truck ride so much better. Just something nice to have over bulky leaf springs.
But there is alway a Kelderman upgrade.....spending other people's money is fun