So ole Roost checking in here, had a 12 Tahoe that was destroyed by AFM and now have a 14 Silver w a 5.3. I see the range plug in looks like still the way to go ?? I'm not letting that AFM bullshyt mess up this one. I started reading first page till i saw how old it was so skipped to the back, what did i miss, same ole BS i reckin. One thing i noticed while reading this thread, is all the mpg talk, my opinion is F that, you dont buy a full size 4x4 truck w a v8 for gas mileage. You want great mpg get a 6 cyl truck w no balls, you cant have it all your gonna give up something somewhere, you guys over 40 should no this, aint nothin free. So it seems the 14's and newer drop to 4 cyl instead of 6, i think that Tahoe dropped to 6 ? Why IN THE HELL would anybody want a big truck that ran in 4 banger mode, and whats the other 4 doing at that time, smokin a ciggerette, thats bullshyt, and will cause problems sooner or later. Ford comin w a 7 plus litre motor and we're cryin about gas milage and pushing dropping to 4 for milage. There is no gas shortage i repeat there is no gas shortage, who TF cares if it gets 16-18-20 there's plenty of it for sale, i want max hp at all times, dropping down to 4 is gay as hell, give me a big block in a half ton truck, 10mpg, now then. What is wrong with you guys