Rather than use the 2006 WRX transmission that came with my donors parts I swapped it for an Outback XT trans. For my application, the gearing was better.
2006 WRX gearing:
Legacy GT 2005-2006 (TY757VBAAB):Code:1st 2nd 3rd 4th 5th Final 3.454 1.947 1.366 0.972 0.738 3.700
Outback XT 2005-2009 (TY757VWAAB):Code:1st 2nd 3rd 4th 5th Final 3.166 1.882 1.296 0.972 0.738 4.111
Main problem is that the OTX and LGT trans don't come with a Speedo Gear or Speedo Sensor installed. The port for the Speedo Sensor and the boss that the Speedo Gear Assembly runs in are all cast into the case. The parts are just missing.Code:1st 2nd 3rd 4th 5th Final 3.166 1.882 1.296 0.972 0.738 4.444
Based on two threads off of Nabisco Thread 1 Thread 2, it looks relatively straight forward to purchase the parts from Subaru and install them myself. Plus I already need to crack open my case to install a limited slip.
Parts with Part Numbers needed:
Shaft = 32713AA002
washer = 803012060
upper snap ring = 8050121020
lower snap ring = 031512000
Gear = 32714AA190 (might need a different gear for the LGT trans)
Seal = 806712100
Speedo Sensor = 85082AE000