Vibration @ 67-71 mph

[GaryCoral]

I had a pretty bad vibration between 67-71. I took the rear tires off and ran the car on stands with no tires and it went away - So I needed new tires anyway and got them. Now that I have the new tires I still have just a mild vibration at the same speed.

 

Also changed U-joints during this process.

 

Any Ideas?

[Schmids5.3l]

Many pick-ups have vibrations at certain speeds. Every once in a while I'll get one. See what a body shop says about it.

[lagrange151]

If I remember right the speed balancing machines at tire shop only spin the tire to about 65mph.

[4ws f 7]

It sounds like a tire balance/tire issue, have all tires and rims checked.