ISB Industrial Torque Rating

[Greenleaf]

Guys,



If the Industrial torque rating on many Cummins ISB's are 660 (lb-ft) why not set the VP44 up on the Auto engines to perform the same??



Emissions?



GL

 

[robertyoke]

powertrain and drive line warrantee, even the nv5600 is only rated to 600ft lb. the nv4500hd was only rated to 450 ~ 460 ft lb. the 47re ?? the 48re ?? transfer case, u-joints, rear end ??

besides they have to play nice with ford and chevy.