Hi guys - I have a 2002 GMC Sierra extcab automatic with 4.8 and 3:73 gears and is lowered. Have headers, electric fan, cold air and street tune. I am having a B&M Megashifter being installed and a Transgo HD Reprogramming Shiftkit. I am hesitant to have a stall put on it, but would like to consider bumping up the gear ratio to 4:11 or 4:56 for addl low end response. I do take it on trips occasionally about 1,000 miles from Pensacola to NC and back (why no stall yet). No taking to the strips yet; but like street performance. If you guys have smiliar experience and want to share ++++'s and/or -----'s, please do. I am not so sure if it makes that much difference to go higher (4:56) if I am going into the 4's anyway, but share your thoughts. thx.