why does my 2008 GMC 2500HD 6.0 have a "new E78"????? Everywhere else I look the E78 is in 2010-2012 year models.......

ok not to sound like a dumda$$........but explain "new E78 PCM"....I'm new to all this lingo.....does this mean not supported by any programmer? not right now by the trinity but will be? if so how long?...... not being a smarta$$ , just really curious...lol

Thanx for the info rdss!!! Think im going to scrape up the change and buy a Trinity. BTW im new here, so who is Lew?

Not sure if its the 6L80 or not.........I have the vin# if it wld help...the 8th digit is "K"(seems like that matters on these trucks)....its a 6 speed auto. I jst want to make sure im getting the right programmer that i can utilize to its full potential for that amount of money. I dont want to be ...

Hello ppl!!! Has anyone used the inTune on the above vehicle? If so can i have some feedback please.....Can you tune the 6 speed auto with it? Been eyeballing the Trinity but not sure and dont have enough info on either of these! Thanx!!!

I was also looking at the inTune.........

My truck is a 08 GMC 2500HD with the 6.0 gas with 33x12.5x20 tires.... 6 speed auto trans. I havn't purchased a programmer/tuner for my truck but will this week. Every programmer I've researched says that the 6 speed tranny can't be tuned in my truck and limits other perimeters. I am looking at the ...