jakes...... isx vs acert

Lets hear which one has better jakes, hows the jakes on a acert anyway? Im looking at a new truck and looking at either the isx or acert, both 07 pre dpf.

Id go CAT hands down but dont want to deal with the IVA's and oil line issues, but then again who wants to mess with egr valves?

 

The fuel millage is what has me leaning towards the cummins, welding the egr shut is not an option yet due to warranty. If this was 03 and older CAT hands down but i think that between the acert or isx there really aint no difference in reliability, i hear that the jake on them is pretty good and will hold a loaded truck down a 6% in high gear without touching the brakes.... This is what i need now running some steep passes with big weight, fuel millage would be a added bonus as well.... Both trucks are T600s.

 

980hp to the tires, with liners 1-6 sunk, a blown headgasket, and a cracked head. But hey it has a million miles.

Anyone needing some go fast goodies?

 

At sea level it would stay under 1100*F at full power so i could run it flat out and not even worry about hills but any elevation and you had to be careful. Millage varried running cross country 5mpg, up and down the west coast 6-6.6mpg. It did better than stock though. But witht he manifold and turbo i had i pretty much lost 90% of my jakes, so what i could pull ashland at 60mph at 80k lbs when i had to go down at 20mph to prevent killing myself.