ok built a rock crawler installed a LQ4 6L but used an 01 5.3tahoe pcm behind it is a th400 so no worries about tranny control
my daily drivers is an 02 2500 hd with LQ4 that i have already tuned
should i
A just do a compare and swap what is not the same or
B write entire my 2500HD tune to the 5.3 PCM????
thanks