1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 233Get this manual
FRONT DIFFERENTIALFINAL DRIVE Make sure the gear assembly rotates smoothly without binding the pinion joint Install the torque wrench on the pinion joint nutMeasure the differential gear preloadPRELOAD: 0.1-0.2 Nm (1-2 kg-em, 0.85-1.7 in-Ibl Stake the pinion bearing lock nut and drive in new drive shaft bearing oil seal
FRONT DIFFERENTIAL INSTALLATION
Apply molybdenum disulfide grease to the differential gear oil seal lips, pinion joint and drive shaft splinesInstall the differential gear case onto the swingarm (page 12251Install the following- skid plate (page 12-25)knuckleknuckle holderdrive shaft (page 12- 18)tie rod (page 12-13)front wheel (page 12-7) Fill the gear case with the recommended oil (page 2-3)