I need a WRX diff. If someone has one local, I'd like to buy it before I have to goto the Bigger boards. I have cash/Paypal/whatever. I just want to drive my car. Also: so if it is broken (like the last one I got shipped) I can kick you in nuts.
The WRX rear diff is 3.54:1 ratio, not 3.9:1. I sold the last one I had lying around a few weeks ago.