Subaru Legacy BN/BS (2015-2019) Service Manual: Installation

1. Remove the front differential assembly.

2. Hypoid gear set match mark/No.: The number (A) on top of the drive pinion, and the number on the hypoid driven gear are set numbers for the two gears. Use a pair having the same numbers.

The figure (B) below shows a number for shim adjustment. If no number is shown, the value is zero.

3. Place the drive pinion shaft assembly on transmission main case RH without shim and tighten the bearing mounting bolts.

4. Perform the adjustment of ST.

5. Position the ST by inserting the knock pin of ST into the knock hole of transmission case.

6. Slide the drive pinion gauge scale with finger tip and read the value at the point where it matches with the end face of drive pinion.

7. The thickness of drive pinion shims shall be determined by adding the value indicated on drive pinion to the value indicated on the ST. (Add if the number on drive pinion is prefixed by +, and subtract if the number is prefixed by −.)

8. Select one to three drive pinion shims in the following table for the value determined as described above, and take the drive pinion shim(s) whose thickness is closest to the said value.

NOTE:

9. Install the front differential assembly. Front Differential Assembly > INSTALLATION

10. Fit the transmission case knock pin to the knock pin hole of the roller bearing and install the drive pinion shaft assembly.

11. Install the main shaft assembly. Main Shaft Assembly > INSTALLATION

12. Check each shifter fork. Shifter Fork and Rod > INSPECTION

13. Install the transmission case. Transmission Case > INSTALLATION

14. Install the transfer case together with the extension case assembly. Transfer Case and Extension Case Assembly > INSTALLATION

15. Install the manual transmission assembly to the vehicle. Manual Transmission Assembly > INSTALLATION