i have a 2004 Grand Prix GT2



first off,
is my tranny the HD?


how can you tell?

annyways, will this kit from zz performance work??

http://shop.zzperformance.com/store/...rhaul-Kit.aspx

and if it will, how long would it take to put in? does the trans need to come out? or can i get it all from the pan?
thanks for help!