ZF S6-650 vs Allison
I got a 03 with the 6-spd and there are very few people that can out pull mine. And as for the speed once you get the shifting down on your truck very few, and i do mean VERY few autos can keep up with it.
Really.I bet so but how does it do pulling the hills?
hey ben are yuo talking about pulling hills or MOUNTAINS?? pulling hills yuo will be fine pulling mountains you will be fine as long as you know how to down shift when you start running out of power.
I havent had a problem at all pulling any hills. The only time it even lugs down is when im over loaded, usually at around 46k or more. But if you shift at the right time u should be fine.


