2006 Subaru Baja Base, AutomaticFACTORY OEM SERVICE PROCEDURE

General Information: Pickup: Transmission

TRANSMISSION SPECIFICATION

Model 2.5 L Non-turbo 2.5 L Turbo
Transmission type 5MT 4AT 5MT 4AT
Clutch type DSPD TCC DSPD TCC
Gear ratio 1st 3.454 3.027 3.454 2.785
2nd 2.062 1.619 1.947 1.545
3rd 1.448 1.000 1.366 1.000
4th 1.088 0.694 0.972 0.694
5th 0.871 - 0.738 -
Reverse 3.333 2.272 3.333 2.272
Reduction gear (Front drive) 1st reduction Type of gear - Helical - Helical
Gear ratio - 1.000 - 1.000
Final reduction Type of gear Hypoid Hypoid
Gear ratio 4.111 4.444 4.444 4.444
Reduction gear (Rear drive) Transfer reduction Type of gear Helical - Helical -
Gear ratio 1.000 - 1.000 -
Final reduction Type of gear Hypoid Hypoid
Gear ratio 4.111 4.444 4.444 4.444
5MT: 5-forward speed with synchromesh and 1-reverse - with center differential and viscous coupling
4AT: Electronically controlled fully-automatic, 4-forward speeds and 1-reverse - with hydraulically controlled transfer clutch
DSPD: Dry Single Plate Diaphragm
TCC: Torque Converter Clutch
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.