Hi Speed Shake

Truck runs smooth for the most part until I reach about 62-67 mph. It shakes, not violently or to the point where it affects my driving, but makes you uncomfortable enough that you want to speed up to smooth out or slow back down. I have a 03 2.7l, 4wd, with 31 inch bf a/ts. Thoughts and opinions? Thank you.

 

maybe a tire is out of balance?

 

Sounds like classic tire out-of-balance. When was the last time you had them balanced? You also might have lost a balance weight or possibly have some caked on mud if you've been in mud recently.

 

Likely. I had a bulge in a tire one time that made mine do it.

When mine happened it was the same make and model tire. Ur def out of balance tho.

 

Those BFG A/T's are notorious for being hard to balance, and for getting out of balance.

 

When you take it in TELL them to do a dynamic road force balance. This means they will place weights in two different spots on rim and measure the road force of the wheels/tires to see if rotating the tire on the rim is necessary to help balance.