Do you notice the shake in the steering wheel or in the chassis/interior of the truck? Have you tried rotating the wheels and tires to see if the vibration changes (especially if you notice the shake in the steering wheel)?

-Rod

 

They just aren't balancing them correctly. Some wheels and tires are very difficult.

 

What is the tyre specs?
Mine are 285/45/22 and i get no shake even on 120 mph.

 

Anyone notice any improvement from Sean's 87 Tune vs 93 Tune vs MPPG tune ? I'm thinking there's such an improvement with this Tune (I'm running 87 tune), I find it hard to believe there will be more noticeable gains. My MPG is higher with 87 Tune vs stock, I'd consider the 93 Tune, but is there even more MPG gains ?, to offset the higher costs at the pump ? He said the MPG Tune will hold ECO longer, which I do notice the truck kicks it out with any increase in grade or throttle.

 

Well, i've done the diablosport canned 87 tune.
Haven't had the chance yet to check how the beast is on highway and if there are any changes in mpg, but done the 0-60 miles test with stock settings and diablosport settings.
here is the result:
Stock settings - 0-60 Miles in 10.00 Seconds (516 feet)
DiabloSport 87 - 0-60 Miles in 8.94 Seconds (446 feet)

The change that i feel is the throttle response which has became really awesome. The gas pedal became very sensitive and feels great! Gear shifting became faster and i feel it less inside the car (with stock settings, shifting from 2 to 3 gear with fully pressed gas pedal gave kind of shake, well do not know how to explain it - now it is less noticeable).

Have a lot things to do with the tuner, a lot to learn and a lot to try. But right now no time to do so. I will update my experience in here as soon as i do something

 

I have an intune with hemifever tunes. I drove mine with a canned 93 octane Diablo tune for a few days before I installed my custom Hemi fever 93 octane tune. The Diablo tune was nice, but the hemifever tune is noticeably better. The tune woke the Hemi up. Much better acceleration and throttle response. And just an FYI: I have a 180 degree thermostat, AFE cold air intake and suitcase muffler delete with an x-pipe reinstalled. All prior to the tune which is recommend.