First question is whats the difference between the sk 4l60e shift kit and the hd2 reprograming kit? I whent to summit today and bought a transgo performance shift kit p/n trg-4l60e. but found out later that there might be another company that gos buy the same transgo name?

my questoin is will the kit i got at summit still work in my truck or do i need to get the transgo sk or the hd2 reprograming kit?

 

Both kits will work, but the sk kit doesn't come with as much stuff as the hd-2 kit comes with. It doesn't come with a boost valve, pwm valve, high rev springs, etc. It's just not as nice as a kit as the hd-2 in my opinion.