2005 Sti gear box. Long story the transfer case bearing went and cracked the case. Gears are fine. I purchased a new tail shaft housing from a 2012 Sti. You have a few options to rebuild the rear section. First. Replace bearing and use old transfer gears and center diff. That will give you a 3.9 final drive. Would require Sti rear diff. Or use the 2012 transfer gears and get a 07 or newer center diff. This will give you a 3.54 final that you can use a 02-05 Wrx r160 with. Will come with front axles, shift linkage, and clutch. Looking for $1500 picked up in fresno. 559-259-3065