I have a bet going on with a friend, and he claims that he knows a fellow who just bought a brand new truck, either a heavy-half(1500HD) or a 3/4 ton(2500HD) truck that came with a 6.0L gaspot and an allison transmission.

Do they exist? Does anyone have one?

Thank You
Justin

 

Yes the Alison 6 speed is an option for 06 also I beleave that there is a 4L85E option as well. Not sure but that is what I think that I remember reading
Mark

 

I havent heard of it in a 6.0L

 

did you mean 5spd or 6spd?

thank you
Justin

 

I think it might be a 5-speed

 

I am pretty sure my 1500 hd has a alison in it.

 

My dads HD doesnt have the allison and its the 6.0L

 

I always figured that the 1500HD with the 6.0L had a 4L80E.

 

performance wise, i wonder if an allison (in a 6L) would be better than a 80e?

 

I got an 80e behind my 6.0

*Edit, According to the GM website the allison is not available with the 6.0.