I just got the HBS 2in level kit installed also and no problems so far.

Looks so much better!

 

Just an update...I have driven about 1500 miles so far with the level and tires...I still love it, and wouldn't change a thing...my speedo seems to be off about .1 miles, so every 10 miles on the odometer is actually 11 miles.....not that far off so I am not concerned...gas mileage has not dropped all that much, just get less at highway speeds because the Eco light is far more sensitive at 60 mph and above...I do have 3.92's so I am sure that helps the situation...it feels like I am driving a monster, and I love every minute of it...

 

Do you think this is being caused by the leveling kit or something else?

 

The vibration is only at hard acceleration in 4x4. It is common even for a stock truck to do it, kind of a design flaw, I know that mine did it stock at hard acceleration (i always felt it but thought it was tire slippage, when in actuality it was just the vibes all along). The level kit only accentuates what is already there because of the change in front suspension geometry. If I accelerate slowly, I don't feel a thing, and honestly, I only use 4x4 in the snow, so I wouldn't be accelerating hard anyways. I've driven in two snow storms with the level and have yet to accelerate hard enough to feel any vibes...

 

I feel the slight vibe also, but again, only HARD acceleration in 4WD. Not sure if it did it prior to level kit or not. Never tried to accel in 4WD on pavement anyway. Not going to worry about it.