Hi all,

I've got a 1.0ltr which i'm putting calibra front caliper's, pads and vented disc on and i've got astra G rear calipers to go on. (I have got the complete rearc axle).

Should I modify the corsa rear axle or fit (what looks like a bigger rear axle) from the astra?

Also i believe i will need a brake bias valve. am i right?

also would i need to change the master cylinder?

Thanks Matt