Got0wned

iTrader: (4)

Steering wheel shakes when I brake... What can it be?

Lexusfam

iTrader: (3)

Warped rotors. Should feel it in the brake pedal too, if you don't feel it in the brake pedal,its something else.

DubK250

Only when you brake? Or also when you get off the gas pedal (less pronounced shake) at like 70mph?

billzblaze

Mine used to do that also but i changed the brake pads and had the rotors turned and it
fixed the problem so check the pads also

pinoiryder

iTrader: (5)

looks like warp rotors.. check you rotors and brake pads.

GS671

Yup like what all the above posts say, It's most likely your brake rotors and pads

Got0wned

iTrader: (4)

thanks for everyone's input. I'll check the rotors when I get the chance. Could wheel bearings also be a possibility? I recently put on 18x9 and 18x10 wheels from stock wheels and the shaking got worse. I now feel the shaking when going on the freeway even when I'm not braking. I did an alignment two weeks back as well

DRELOC

iTrader: (3)

^^^ I would like to know this also as i have the same issues recently after installing larger wheels

fuzzzz

iTrader: (19)

balance your wheels, tire pressure?

AW99GS400

steering wheel shakes at highway speed when try to slow down = warped rotors
steering wheel shakes when install larger rims = centric ring most likely

McKrevice

iTrader: (1)

Do not rule out tie rods.

GSRSRT

thank god for this post!! ok so i have this same problem so here it go's i just installed brand new shocks, upper control arms and steering rack bushings so i thought now im good! yeaa right now i keep hearing a humming noise when i go over 40 mph which causes the steering wheel to violently hake and it shakes bad i also installed New break pads with all the hardware so i went and put the car on a lift and guess what the left front wheel feels like its locked!!! idk what this can be but the Bearing!! so my questions is, Is this problem the Bearing and if it is how much will a spindle cost me from Lexus because rockauto.com does not carry this item.

McKrevice

iTrader: (1)

what do you mean it feels like it's locked? Like the caliper won't release from the rotor?

And if it's the wheel bearing, it does not appear that the bearing and spindle are one piece. I would imagine that you can take your spindle off and press out the bearing and press in new ones if that's the problem.

99 GS3

iTrader: (14)

No need to replace the spindle, you can just get bearings from lots of places, including rockauto. They are right on rockauto's site listed for like $4x.xx or so.. Check Carson Toyota or Swell Lexus if you want oem bearings.

GSRSRT

but don't you need a press!! to take em off which i don't own one