audigone

on the highway I get vibration at varying speeds, at 60-80 its the worst (hardest vibration) at close to 100 there isnt much.

I also get some vibration when accelerating at medium speeds,

coudl this just be a wheel balance issue, or a driveline issue>?

Just put on new control arms, tie rod, motor mounts and had an alighment it drives perfectly straight, just vibration at different speeds,

what should I be looking for, coudl my u joints be bad in the driveline?

sj6sp

Get a hunter road force balance. This should identify any tire and wheel issues.
The site linked has a locator.

Regarding driveshaft/propshaft, has it ever been removed? I replaced mine due to the front CV going dry and starting to make a ticking noise at low speeds. The only reason it went dry is because when shops pull the trans, they don't properly repack the CV w/ grease AND replace the propshaft flange gasket. The rear CV on the propshaft was never disconnnected and was nice and tight even after 80K mi. (Poor workmanship sucks)<ul><li><a href="http://www.gsp9700.com/">http://www.gsp9700.com/</a></li></ul>

ScottGo

Sounds silly, but check your lugs. Make sure they're torqued correctly.

Illusive90S

Wheel balance, maybe even bent wheels.

amercour

Thats what happens to me when I have a bent wheel

Swank4

have them rebalance. Some have a "high performance" balance where they spin it faster and have tighter tolerances (so I'm told). FYI, Big O' Tires has improperly balanced TWO sets of wheels for me. I took it somewhere else and got it rebalanced and now no more vibrations. I find that vibrations are worst between 60-80.

RaveGreen

Definitely suggest checking/balancing the wheels