I expect it will work for you too.
The main problem I see is that the final drive is almost certainly lower in the tranny from the WRX, than it is for the SVX. The US model has even longer legs than the Euro or JDM spec, and I suppose that relates to the expected long range on-highway driving you guys do a lot of.
Even if the box is free, you are going to have to source a compatible rear drive to suit.
Hope it all works out. With a lower final drive, you will have much more fun with the car.
Joe
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