Hi all. Just registered. Wanted to thank all who posted bout the allison nsbu switch. Just replaced mine tonight and I'm out of third gear! I have a 2002 Chevy crew cab long bed four wd. Duramax has been great. Have a simple flashpaq tuner. Plan on exhaust and other mods soon. 168k miles and still strong. I'm curious about other tuners. I've heard edge juice and others make great HP and versatility. Lookin forward to learn and listen to y'all. Great savin money buyin a 40 dollar part n not callin mechanic.
