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Old 02-16-2013, 06:33 AM   #1
Scooby Newbie
Member#: 287299
Join Date: Jul 2011
Default Is WRX driveshaft the same as an STI

I'm doing a STI swap into my GC and I'm collecting parts there's a guy that sells Subaru parts and he was telling me WRX driveshaft is the same as STI. I tried researching and can't find anything other than the WRX driveshaft is slightly longer. Anybody have input on this would be helpful thanks.
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Old 02-16-2013, 07:12 AM   #2
Scooby Specialist
Member#: 153412
Join Date: Jul 2007
Chapter/Region: MWSOC
Location: Springfield,il
1998 Impreza wrxRS


no. a 5spd & 6spd driveshaft are different lengths. i have read that a 4eat drive shaft works

*edit* he said it's longer but still thinks it'll work?
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Old 02-16-2013, 10:05 AM   #3
Scooby Newbie
Member#: 173321
Join Date: Mar 2008
Chapter/Region: E. Canada
Location: New Glasgow, NS
2007 SWP WRX
dom2.5xtr w/ meth & 6spd


The auto impreza driveshaft is the same length as the sti driveshaft but the bolt pattern on the companion flange on the rear diff has different spacing. If you are using a r160 rear diff, you have no issues, bolt it up. If you are using the r180, you need to pop the companion flange off it and swap on the flange from the r160.

The wrx driveshaft is not the same length as the sti.
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Old 02-16-2013, 11:20 AM   #4
Scooby Specialist
Member#: 127745
Join Date: Oct 2006
Chapter/Region: NWIC
Location: CA
06 WRX 30r 6 speed
99L EJ255 6 Speed


^^ 100% correct. I usually say use what you have, but in this case, use whatever is cheapest and requires the least work. Not that swapping the companion flange is difficult hit they cost $80 or so new
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