FCAB or Rotor?
 

Hi Everyone,

I need your help again. After I got the new tires, I immediately notice the steeling wheels shakes when applying brake @60+mhp. This doesn't exist with my old Michelin Latitude Tour HP.

Brake was changed within 15K miles by Extended maintenance plan. The X accumulate <6K miles in last 24 months. The dealer service guy did mention the Control Arm Bushing was starting to fail.

I have get under the X and check on the Front Control Arm Bushing, which I assume is this. But it look fine to me with the rubber look exactly like in the product picture with out splitting or cracking. Obviously I am not a pro , and my visual inspection means nothing. But I just want to check with your guys before I order the parts and bring them to my indy who is going to charge me $200 to replace both sides. BTW, I assume I should order this upgraded version?

Thanks

If you are replacing them, yes I would order the upgraded protection package bushings.

You can also test them by grabbing the actual thrust arm and shaking it. There should be almost zero play in the actual arm, if you are shaking it and there is a ton of play or you start seeing a lot of flex and/or cracks in the bushings, then yes they are bad.

New arms/bushings should be tight. Be sure you don't have warped rotors as well

Classic sign of thrust arm bushing failure. Classic. AKA 'lower control arm'

It is VERY hard- actually impossible- to diagnose by visual inspection

You going to replace the whole lower control arm or just the bushing?

LCAs should be a one hour job. 2 hours to replace the bushings. But you should do an alignment afterwards.