Hey guys.
So I picked up a new (to me) GMT400 to replace my old one.
Old one:
98 K2500 ext cab short box.
Drive by wire LM7 5.3L mated to rebuilt 4l80e.
Hydroboost swap from 05 Tahoe 1500.
ABS delete, proportioning valve from earlier GMT400.
Alarm starter, DVD player (2din with custom...