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.
Front Differential: Installation
- Install the front differential to the converter case.NOTE: Be careful not to damage the inside of the case (especially the mating surface of the differential side retainers).
- Temporarily install the differential side retainers using the ST.
Preparation tool:
ST: WRENCH COMPL RETAINER (18658AA020)
- Adjust the backlash of the front differential. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>FRONT DIFFERENTIAL>ADJUSTMENT .
- Inspect and adjust the tooth contact. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>DRIVE PINION SHAFT ASSEMBLY>ADJUSTMENT .
- Remove the differential side retainers and install new O-rings and oil seals. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>FRONT DIFFERENTIAL>ASSEMBLY>DIFFERENTIAL SIDE RETAINER .NOTE: Record how many turns were needed to remove.
- Install the differential side retainers using ST (WRENCH COMPL RETAINER).NOTE: When attaching, turn the differential side retainer by the same number of turns it took to remove, and align the marks.
- Install the lock plate.
Tightening torque:
25 N.m (2.5 kgf-m, 18.4 ft-lb)
- Install the oil baffle.
- Install the drive pinion. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>DRIVE PINION SHAFT ASSEMBLY>INSTALLATION .
- Install the primary pulley, secondary pulley and variator chain. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>PRIMARY PULLEY AND SECONDARY PULLEY>INSTALLATION .
- Install the transmission case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION CASE>INSTALLATION .
- Install the forward clutch assembly. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>FORWARD CLUTCH ASSEMBLY>INSTALLATION .
- Install the intermediate case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>INTERMEDIATE CASE>INSTALLATION .
- Install the transfer reduction driven gear assembly. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSFER REDUCTION DRIVEN GEAR>INSTALLATION .
- Install the transfer clutch assembly. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSFER CLUTCH>INSTALLATION .
- Install the rear drive shaft. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>REAR DRIVE SHAFT>INSTALLATION .
- Install the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>EXTENSION CASE>INSTALLATION .
- Install the transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION HARNESS>INSTALLATION .
- Install the control valve body and oil pan. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>CONTROL VALVE BODY>INSTALLATION .
- Install the air breather hose. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>AIR BREATHER HOSE>INSTALLATION .
- Install the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION ASSEMBLY>INSTALLATION .
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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.
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