vibration while driving on highway on 2005 Nissan Quest

i am getting vibration in steering wheel when drivig about 55 mph on up-had four brand new tires installed and balance was double checked on them twice and no rims are bent and no tires are out of round-what else could it be?-what is best way to figure out if an axle is suspect?

by in Herculaneum, MO on May 23, 2011
1 answer 1 comment
ANSWER by on May 23, 2011
Honestly - a vibration like you speak of is really only related to a tire balance issue. I strongly recommend a different shop balance your tires. I think you will find that the shop that balanced them last (twice) probably has a balance that is out of calibration. Axle shafts cause vibration in very abnormal and unusual circumstances; the vibration would be felt at much lower speeds in this case.
COMMENT by on May 23, 2011
Totally agree with Dave's answer the speed is where the imbalance occurs is typically wheel imbalance. If the vibration was not there before it's got to be wheel imbalance. Try rotating the tires front to rear and see if the vibration changes or goes away. I have seen axles on two Dodge Voyagers give a vibration that felt like wheel imbalance but have never seen it on the Quests and Mercury Villagers we work on.