Luxury Coach Lifestyles - View Single Post - ZF 12 speed Transmission vs Allison 6 speed

Barry Rooker · 09-23-2011, 09:41 PM

I've driven a few ZF coaches and my own coach has the Allison. The ZF was a temporary transmission for Newell until Allison would warranty their transmission with the increased horsepower & torque after the Detroit 60 was replaced with Cats & Cummins engines. Current Newells come only with the Allison, I believe.

That said, the ZF is great for mountain driving as the Jake Brake is awesome. Otherwise, I've no use for it: slower accelerating; roll back at stop signs; lurching between gears.

09-23-2011, 09:41 PM	#3
Barry Rooker Member Join Date: Jun 2006 Location: Oklahoma City Posts: 64	I've driven a few ZF coaches and my own coach has the Allison. The ZF was a temporary transmission for Newell until Allison would warranty their transmission with the increased horsepower & torque after the Detroit 60 was replaced with Cats & Cummins engines. Current Newells come only with the Allison, I believe. That said, the ZF is great for mountain driving as the Jake Brake is awesome. Otherwise, I've no use for it: slower accelerating; roll back at stop signs; lurching between gears.