Originally Posted by Buster's danali

For anybody out there who can help. I have a 02 gmc danali w/a6.0 full time four wheel drive w/4wheel steering run's awesome. however being a baby boomer which basically means street racer. I am thinking of changing engine's, so here's the ?. I would like to install an LS9, the 638 horse. I would like to know if the tranny & axel's ( drive train) would handle the increase in power. and if I would have modify or change the electric's.