Sure.. I did it on mine.. not too bad, but it does require some work.. The worst part is working with your heads over your head for a extend time.
http://67-72chevytrucks.com/vboard/s...&postcount=536
http://67-72chevytrucks.com/vboard/s...&postcount=852
I found this… Hope it helps..
http://www.brotherstrucks.com/techar...LATION&index=0