The WRX uses a 3.545 rear, the same as the SVX.
The RS is not a 3.545, it's probably a 4.11?? You'll need to get a 4.11 (or whatever matches) rear out of a Legacy and swap your LSD into it. The info to swap the diff is either in the "how To's" or in a post somewhere?
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Dave
- 03 Baja - 92 SVX - 86 Brat - 08 OB 3.0
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