Brake question?

[rodzombie]

AEM makes a big brake kit for the Vibe GT. I'd like to use it on my base Vibe. The rear kit uses the stock rear caliper off the GT. Has anyone tried to convert a base model Vibe over to the GT rear disc set up?? If so what parts did you need to buy from the GT besides the caliper mount, caliper, rotor, brake hoses, and parking brake cables? Is there a proportioning valve or a differant master cylinder? Is the rear hub differant?? Anyone know?????

[MadBill]

This isn't a direct answer , but here's one thread re brake swaps: http://forums.genvibe.com/zerothread?id=8490 I know there was a thread a year or more ago re adapting discs to the rear...