Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU1990XT-6 4WD L6-2.7L SOHCREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSCUSTOMER INTERESTFIRST GEAR DISENGAGEMENT PROBLEMPROCEDURE FOR VEHICLES NOT USING A BUSHING
1990 Subaru XT-6 4WD L6-2.7L SOHC
Procedure For Vehicles Not Using A Bushing
1990 Subaru XT-6 4WD L6-2.7L SOHCSECTION Procedure For Vehicles Not Using A Bushing
FIRST DRIVEN GEAR REPLACEMENT PROCEDURE FOR VEHICLES NOT USING A BUSHING (OR VEHICLES USING A SHAFT). THESE ARE FULL TIME 4WD VEHICLES.
1) Measure the outer diameter of the journal portion on the driven shaft at three different locations (120 degrees apart). Use the greater of the three measurements.
NOTE: If the outer diameter of the driven shaft is not within the following range replace the driven shaft.
49.959 47.975 mm
(1.9683 1.9690 in.)
If you are replacing the shaft, there are now two driven shafts of different sizes to choose from. Either shaft may be used as long as the corresponding gear is matched to it.
Select a suitable first gear using the largest of the three measurements obtained from the driven shaft journal, or the measurement of either replacement shaft you selected.
These charts are for information only to show the supersession of part numbers and the difference in clearances.
1) Measure the outer diameter of the journal portion on the driven shaft at three different locations (120 degrees apart). Use the greater of the three measurements.
NOTE: If the outer diameter of the driven shaft is not within the following range replace the driven shaft.
49.959 47.975 mm
(1.9683 1.9690 in.)
If you are replacing the shaft, there are now two driven shafts of different sizes to choose from. Either shaft may be used as long as the corresponding gear is matched to it.
Select a suitable first gear using the largest of the three measurements obtained from the driven shaft journal, or the measurement of either replacement shaft you selected.
These charts are for information only to show the supersession of part numbers and the difference in clearances.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.