Shaking at 65mph

[val620]

What would cause a 96 two door yukon to start shaking around 65 mph. I know the alingment is one but thats been checked.Its all stock suspension and wheels the tires are all the same size. What could it be?

 

[fyremanpat]

tire out of balance

 

[cam3439]

Tire out of balance, bad tire (out of round), u-joints. Does it start to vibrate at certain speeds?

 

[boble94]

it could be the motor mounts?
where is it shakin mostly at?

 

[blueflamed03]

tires out like mentioned, mud in a tire, motor mounts will be more at idle.

 

[arkyami]

Had a vibration 2 for about a month.. Was to busy to go get them balance and last week started hearing grinding noise.. Turned out I had a drivers side hub bearing going out.. No vibration anymore..