Car Vibrates Going Over 70 mph and Around 50 At Times

[Jvrg.p]

i have a 1991 lexus ls400 it's my daily i drive it everywhere but since i got the car it's been vibrating whenever i drive it on the freeway and everything in the car shake syiu can feel it on the set , steering wheel shakes so does the gear changer i want to get into this and figure out the problem 

[TrevC]

Hi Jorge....welcome to the Club

Does the vibration come on at a certain speed and also disappear after a certain speed (e.g. start at 40mph and disappear at say 60mph)? If so, then this could be a wheel balancing issue.

If it is there constantly from the moment you pull away then it sounds like a driveshaft or engine running issue.

Cheers,  Trevor

[w140amg]

Balancing the wheels and new set of Continental tires fixed the problem. 

The previous owner on my '98 bought cheap tires in the front.  So I swapped out for a new set.

Shaking stopped.  It felt like the driveshaft was shaking.

I would check the tire and wheel condition first.  Hope this helps.

 

 

[M.Yasir]

Same is the case with me, even with Pirelli P7 tire i have vibrations all over the place, saving money to buy good quality motor and trans mounts, and then will report back