I'm piecing together stuff for a 6sp swap and need some advice.
I know I need to have a 3.9 rear end and i want it to have an LSD. But i see a few ways of doing it.
1) Buy a nonLSD legacy diff and swap my LSD into the legacy case.
2) Buy a nonLSD legacy diff and swap the 3.9 ring/pinion into my r160.
3) Buy a legacy diff that has LSD and 3.9 already.
I'm not sure which model years to look for, so I would appreciate some info on that, but also which route would be the better way to go, and if i'm leaving anything out.
Unfortunately a r180 is gonna cost too much.
Also, will an auto driveshaft from any 2000-2004 Impreza work?
thanks.