"Yeah GM uses a 3.73, but if Ford and Ram have a tire diam that is 2" greater in diam, that 4.10 is negated to a 3.73 due to the the taller tires!"
Marty it's a rare day I can find fault with anything you have to say but today is the day! Tire size on the GM and RAM are the same at 31.8x9.3 and Ford is 31.5x9.6, all three are 17" wheels now.
GM recently went from 16-17" wheels, did this coincide with upping the HP n TQ? NOPE I just looked back to 2014 they had 17's then.
I am still saying the Allison is at the end of it's life being able to pass the SAE J2807 test. Anyone in their right mind would not post lower numbers if they could have similar numbers to their competition.
Like I said before I could not tow with a GM and be within it's tow ratings with my current setup.
