These are the mods on the truck 2007 lbz, sc4, co-pilot, aurora 5000, nos dry shot, ppe hot + 2 et, lift pump and fuel rail shimmed any how i think he broke the input shaft, how do you tell with out pulling the trans? he was racing when it happen and the only codes that i found are 4E65,0142,0031,078B,3F00,0000 and they are not right. he did also have a edge and attitude stacked if that means anything, i checked all the connections on the co-pilot and the trans and fuses but the trans does absolutely nothing but it does have park

thanks, Sonny

Park means output is good.If you cleared codes and still nothing I would also say input,you might be able to get a pressure check externally not sure though if input breaks you lose pump pressure I am unsure about this?Good luck.

I don't think you'll lose pressure if the input breaks, the converter drives the pump not the input shaft. One way to tell would be with a tech II and see the tranny is seeing a input speed. If it doesn't and the engine is running and in gear, it's broke the input shaft.

pull a side cover off. if the drum isnt turning while in P or N, then somethings wrong with the input shaft.

Input sensor will not tell you as that signal comes off the dimples on the outside of converter. Turbine sensor signal will tell you if it's the input shaft.