2008 infinti fx35 shakes and vibrates when i go over a bump or bad road

Warped brake rotor usually cause high vibration at high speeds. But you can also feel it at lower speeds. But bad ball joints and tie rod end will cause vibration at high speeds. Ball joints will pop at pot holes, sometimes. Tie rods can be felt in the steering wheel at a stop. Move the wheel slightly to the left and right, you can feel/hear a tap as you turn it.

Sounds like you need new engine mounts

check cv joints for issues,, may have bad ones does steering wheel shake also..

If a hub bearing was bad, it almost always would make noise, more so when changing lanes at higher speed. Outer CV joints make a loud low pitched rattle when turning (corners). Inner CV joints raise hell at high speed- bad shake! Sway links affect cornering and clunk when hitting rough patches of road surface.
Is the vibration worse at 65 than at 50? If so, you are dealing with a wheel balance situation. Find an old time front end shop that will check the balance on the vehicle. You will have to turn off the traction control to do this or use an on-the-car wheel balancer.
If you feel it at some low speeds at it comes back at other higher speeds, then you are dealing with tire roundness. Possible more than 1. More common than we would like.

the problem could be be energizes from worn out shock absorbers but the real problem is from need a wheel alignment
check all steering ball joints first and then get the alignment done
have the shop check for bearing adjustment as well before the alignment

THUMPING NOISE COULD BE BLISTER OR BUMP ON THE TIRE,IMPROPER SHOCK ABSORBER OR STRUT DAMPER ACTION.

have the cv joints checked as the vibration can be from failing drive shafts

the bearings in the front end differential are probably going out.

Front shocks are week

Please have a check at your steering rack and your shocks.

But I have a strong belief it could be your steering rack.

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