10-15-2019, 06:19 AM
#1267 is a 2009. During that time period Newell was predominately using the Cat C-15 with 625 bhp and 2050 ft-lb of torque. Allison would not warranty their transmissions with an engine that developed over 1950 ft-lb of torque (1900 ft-lb prior to 2009 as I recall). Newell installed a few C-15's downrated to 1900 ft-lb of torque that would meet Allison's requirement.
I am not aware of a ZF to Allison swap but someone could have done one. One of the issues still would be the engine torque exceeding what Allison would find acceptable. I suspect Newell would know if anyone had actually made a tranny switch with your engine.
I am not aware of a ZF to Allison swap but someone could have done one. One of the issues still would be the engine torque exceeding what Allison would find acceptable. I suspect Newell would know if anyone had actually made a tranny switch with your engine.