SudoSTI
Member
After reading through some other build threads I realized I never laid out what all specifically I used for my drivetrain swap into my 02 WRX. I did a ton of research and a bit of guess and check so I'm listing this info here for prosperity's sake in the event that someone wants to piece together a 6-speed swap using various years from both GD and GR. I am also including similar year ranges in parenthesis to aid in the search for proper parts.
My drivetrain is as follows:
- 08 STI transmission (08-15 STI should be identical, 6-speed Spec B should be the same but with super awesome longer gearing)
- 08 STI rear differential (06-15 STI, 6-speed Spec B rear diff gearing SHOULD all be identical, not 100% sure though)
- 06 STI OEM driveshaft (04-07 identical)
- 05 STI male/male front axles (05-07 identical)
- 06 STI rear axles (05-07 STI identical, from what I can tell the 04 rears are very slightly shorter to account for the shorter lateral links/narrower rear stance)
- 05 STI knuckles (05-07 STI identical)
- 05 STI Brembos (04-07 STI identical, just get the proper rotors for the proper lug pattern 04 vs 05-07)
- 05-07 Cusco coils (whichever brand/style as long as it's 05-07 STI fitment)
- 04 STI shift linkage (04-07 STI identical, 08+ technically can work in a GD but it will make shifter placement off e.g. neutral will look like the shifter is in 4th gear, with as cheap as they are just get the proper year range)
- 6-speed shift fork, fork shaft, and plug (I believe all STI 6-speed forks are identical)
- 06 OEM STI flywheel and ACT 6-speed clutch (5-speed clutch/flywheel set will work due to the 6-speed bell housing being larger, but I decided to install a new clutch while I was in there and opted for the proper 6-speed, especially since the torque rating for the same "stage" 5-speed clutch is lower than the 6-speed)
It didn't dawn on me until after I had already sold my WRX transmission that my STI sensors were clipped with no wire remaining and I forgot to remove my old ones from the WRX transmission. I used the following thread to decide to order 04 STI sensors based on my WRX ECU:
http://forums.nasioc.com/forums/showthread.php?t=2378904
Because I went with an 08+ STI transmission in my GD, I no longer had a vehicle speed sensor (VSS) because the CANBUS system of the 08+ models read vehicle speed via the ABS tone ring on the axle rather than a vehicle speed "gear" found within the transmission. I found a good deal on a used VSSPro from DCCDPro and picked that up. I will ultimately be switching to MapDCCD's unit because they plan on being able to ingrate it with their DCCD controller which I plan to get shortly down the road. This is spliced into an ABS sensor line and the line to the ECU that receives the signal to be sent to the speedo/tach. WITHOUT THIS UNIT THE VEHICLE WILL GO INTO LIMP MODE. *I am not affiliated with these companies, just trying to condense information.*
VSSPro:
http://dccdpro.com/product/vsspro/
MapDCCD VSS:
http://mapdccd.com/vss.html
I kept all subframes and whatnot the same. I reused my clutch slave/etc. I believe that's everything. If there are any further questions feel free to PM or post here.
My drivetrain is as follows:
- 08 STI transmission (08-15 STI should be identical, 6-speed Spec B should be the same but with super awesome longer gearing)
- 08 STI rear differential (06-15 STI, 6-speed Spec B rear diff gearing SHOULD all be identical, not 100% sure though)
- 06 STI OEM driveshaft (04-07 identical)
- 05 STI male/male front axles (05-07 identical)
- 06 STI rear axles (05-07 STI identical, from what I can tell the 04 rears are very slightly shorter to account for the shorter lateral links/narrower rear stance)
- 05 STI knuckles (05-07 STI identical)
- 05 STI Brembos (04-07 STI identical, just get the proper rotors for the proper lug pattern 04 vs 05-07)
- 05-07 Cusco coils (whichever brand/style as long as it's 05-07 STI fitment)
- 04 STI shift linkage (04-07 STI identical, 08+ technically can work in a GD but it will make shifter placement off e.g. neutral will look like the shifter is in 4th gear, with as cheap as they are just get the proper year range)
- 6-speed shift fork, fork shaft, and plug (I believe all STI 6-speed forks are identical)
- 06 OEM STI flywheel and ACT 6-speed clutch (5-speed clutch/flywheel set will work due to the 6-speed bell housing being larger, but I decided to install a new clutch while I was in there and opted for the proper 6-speed, especially since the torque rating for the same "stage" 5-speed clutch is lower than the 6-speed)
It didn't dawn on me until after I had already sold my WRX transmission that my STI sensors were clipped with no wire remaining and I forgot to remove my old ones from the WRX transmission. I used the following thread to decide to order 04 STI sensors based on my WRX ECU:
http://forums.nasioc.com/forums/showthread.php?t=2378904
Because I went with an 08+ STI transmission in my GD, I no longer had a vehicle speed sensor (VSS) because the CANBUS system of the 08+ models read vehicle speed via the ABS tone ring on the axle rather than a vehicle speed "gear" found within the transmission. I found a good deal on a used VSSPro from DCCDPro and picked that up. I will ultimately be switching to MapDCCD's unit because they plan on being able to ingrate it with their DCCD controller which I plan to get shortly down the road. This is spliced into an ABS sensor line and the line to the ECU that receives the signal to be sent to the speedo/tach. WITHOUT THIS UNIT THE VEHICLE WILL GO INTO LIMP MODE. *I am not affiliated with these companies, just trying to condense information.*
VSSPro:
http://dccdpro.com/product/vsspro/
MapDCCD VSS:
http://mapdccd.com/vss.html
I kept all subframes and whatnot the same. I reused my clutch slave/etc. I believe that's everything. If there are any further questions feel free to PM or post here.
