1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 242Get this manual
FRONT DIFFERENTIALFINAL DRIVE Remove the pinion joint holderMake sure the gear assembly rotates smoothly without binding by turning the pinion jointMea ure the final gear assembly preloadPRELOAD: 0.2-0.4 Nm (2-4 kg-em, 1.73.5 in-Ibl
Stake the pinion bearing lock nut and install new drive shaft bearing oil seal
FI NAL DRIVE INSTALLATION
Apply molybdenum disulfide grease to the drive shaft oil seal, pinion joint and drive shaft splines Install the final drive gear case on the swingarm (page 14-12) NOTE Do not forget to install the spring into the drive shaft joint before installing the gear case