Reassembly [09/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- INSTALL FRONT DIFFERENTIAL SIDE GEAR (w/o LSD)
- Coat the front differential side gear, front No. 1 differential side gear thrust washer and conical spring with gear oil.
*1 Front Differential Side Gear *2 Conical Spring *3 Front No. 1 Differential Side Gear Thrust Washer Gear Oil - Install the 2 front differential side gears, 2 front No. 1 differential side gear thrust washers and 2 conical springs to the front No. 1 differential case sub-assembly.
*1 Front Differential Side Gear *2 Conical Spring *3 Front No. 1 Differential Side Gear Thrust Washer NOTE:- Do not drop the front differential side gear, front No. 1 differential side gear thrust washer and conical spring.
- Make sure that the conical spring is installed in the correct orientation.
- Set SST as shown in the illustration and tighten it.
*a Turn *b Hold - SST: 09528-52010
- 09528-05010
- 09953-05010
NOTE:Do not overtighten SST, as doing so will damage the front differential side gear, conical spring, front No. 1 differential side gear thrust washer and front No. 1 differential case sub-assembly.
HINT:
- Tighten SST to create the necessary clearance to install the front differential pinions.
- When installing the front differential pinions, do not overtighten SST, as it is necessary to rotate the front differential side gears.
- SST: 09528-52010
- Coat the front differential pinion and front differential pinion thrust washer with gear oil.
Gear Oil - Using SST as shown in the illustration, rotate the front differential side gear and install the 2 front differential pinions and 2 front differential pinion thrust washers.
*a Turn - SST: 09528-52010
- 09528-05030
WARNING:Be careful not to catch your fingers between the front differential pinion and front No. 1 differential case sub-assembly.
NOTE:Do not drop the front differential pinion and front differential pinion thrust washer.
- SST: 09528-52010
- Coat the front differential side gear, front No. 1 differential side gear thrust washer and conical spring with gear oil.
- INSPECT FRONT DIFFERENTIAL PINION BACKLASH (w/o LSD)
See step 3
- INSTALL FRONT NO. 1 DIFFERENTIAL PINION SHAFT (w/o LSD)
- Coat a front No. 1 differential pinion shaft with gear oil.
Gear Oil - Install the front No. 1 differential pinion shaft to the front No. 1 differential case sub-assembly so that the hole for the front differential pinion shaft straight pin is aligned with the hole in the front No. 1 differential case sub-assembly.
- Coat a front No. 1 differential pinion shaft with gear oil.
- INSPECT FRONT NO. 1 DIFFERENTIAL CASE SUB-ASSEMBLY (w/o LSD)
See step 1
- INSTALL FRONT DIFFERENTIAL PINION SHAFT STRAIGHT PIN (w/o LSD)
- INSTALL FRONT DIFFERENTIAL RING GEAR
- Using a heater, heat the front differential ring gear to 90 to 100°C (194 to 212°F).
- Clean the contact surface of the front No. 1 differential case sub-assembly and front differential ring gear.
- While aligning the matchmarks, quickly install the front differential ring gear to the front No. 1 differential case sub-assembly with the 16 bolts.
*a Matchmark Torque: 106 N.m (1081 kgf/cm, 78 ft.lbf)