Saturday, Apr 21, 2012 at 19:07
Can't adjust Subaru front wheel bearings as they are a hub type.
They are tightened by the drive shaft bolt.
It is a common thing, brake shudder and many reasons can cause it.
When you fit new rotors ensure the surface where the rotor seats up against the hub is clean otherwise the rotor will not sit flush up against the hub and cause the shudder.
The shudder is called "Disc thickness variation" It can also be caused by brake caliper retention or even sticky pistons and slides in the caliper.
By fitting slotted and drilled rotors to the front and leaving the rear standard will make no difference to your braking. The idea of the slotted and drilled rotors is to let the gasses that develop during braking dissipate. I have slotted and drilled DBA rotors on the front and standard solid rotors on the rear of my 80 series.
The ABS is completely separate and will still work fine.
I used to have a page on my workshop website about brake shudder which was an excellent read but considering I sold the workshop a few years back , well the website was shut down.
Hope this helps
Scott
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