i was wondering about my SC300...after i get up to about 90-100 in my SC, the steering wheel begins to shake....whats the deal with this...im almost positive the power steering fluid is perfect, and i couldnt see it being anything else...does anyone else have a similar problem??
anytime i floor it, its perfect up to about 80 but i mean i can still steer its just shakes in place....??? is this normal?? Help!

 

Your wheels might need to be rebalanced. Take them to any tire place, they should be able to do ti for you.

 

^^thanks alot bro!
will do!

 

if that doesnt work, could be ball joints going bad

 

My steering wheel shakes at 65+ because I have defective tires. I tried balancing them numerous times, still does not fix it. I guess I have some hard and soft spots on the sidewalls of my Toyos.