Ok so i just got back from a 6 month deployment and my car used to shake only above 70mph which wasnt ever an issue around town but my wife drove my car a few times and it "randomly" started shaking and this shake starts around 40 and can be felt in the steering wheel so im guessing front end. Any ideas where i should start lookin?

 

Also the tie rods were new before i left and i had the front end aligned afterwards and the front tires have been balanced since ive owned it.

 

Jack up the front end and spin each wheel. Look for any run-out in the wheel or tire. Grab the wheel and yank the sides and the top / bottom to see if there is excess play.

6mo. deployments don't help flatspotted tires but a high-range psi pressure and some driving fixes some cases of that issue.

If at all possible, swap tires and wheels with a friend's f-body or 2WD S10 or g-body or even some 77-90 Caprices had the smaller bolt pattern.

Get underneath and grab the suspension components to check for looseness. Turn the wheels full left and full right.

New wheel bearings inner / outer and seals are cheap and easy to do if you know they have tens of thousands of miles on them and as long as you're inspecting them.

It's more than likely tires or bearings.

 

Thanks, the front wheel bearings are also new and i believe have a warranty, i just got an air compressor so i'm gonna check the air pressure in the tires and see if it helps a lil. Also i meant to put this in the suspension and chasis section.