07 Tacoma 4WD Engagement Problem

[gfiero]

I have an 07 Dble Cap Sht Bed TRD 4x4 with 89000 (approx.) miles on it. Monday I had 2 new BFG T/A's mounted. I no longer can engage the 4WD. I have a rumble when accelerating and a whistle form under the truck when appling gas. The dealer has already had it for a day.

Any thoughts? The Dealership does not seem to understand what is happening, they use the word 'Uhhh', alot.

 

[gfiero]

Update

Cured the engagement problem, pulled the electrical connection cleaned and sealed it with grease, works okay. Still have the vibration and rumbling when accelerating.