99Dakota,

Can you get me the 4 digit CPL number off of the valve cover please? Also, what part number Puck did you receive?

since it isn't my truck i don't have much access too it. but i do know its the D7157 puck. We think it needs the D7156 for an 03 cummins because pretty much all hes ever ...

I am a n00b at this .... whats with the different CalIds? If your tuner ID starts with 05 as mine does, I can only use the 05 Download correct?