Not sure if this is the right place to post it, so I thought I'd post this here (rather than the transmission sub-forum, cause it seems so clean).
My question is - how doable is a rear diff swap on a GC generation STI (as in is it possible to change it in a driveway without a lift and without me being a pro)? And one more question - is it possible to use a rear diff, from a GC8 wrx (possibly other gens as well)?
There's this STI I'm quite interested in buying, that has a rear diff problem and I'm wondering if this issue will be a wormhole for money or not.
Are you pulling the entire pumpkin and putting a new one in or are you talking about pulling the carrier and replacing it? If you are getting your current one I would take it to someone. There is a fair amount of know-how to setting backlash and gear mesh.