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SHIFT FORKS/HUBS/SLEEVES Check condition of the shift forks and mode fork shift rail (Fig. 33). Minor nicks on the shift rail can Inspect the shift fork wear pads (Fig. 34). The mode and range fork pads are serviceable and can be Check both of the sleeves for wear or damage, especially on the interior teeth. Replace the sleeves if REAR RETAINER AND EXTENSION HOUSING Inspect the retainer components. Replace the bear- ing if rough or noisy. Check the retainer for cracks or Inspect the retaining rings and washers. Replace any part if distorted, bent, or broken. Reuse is not Inspect the extension housing seal and bushing. Replace both components if either show any sign of FRONT OUTPUT SHAFT/FLANGE/DRIVE CHAIN Check condition of the seal contact surfaces on the companion flange slinger. This surface must be clean Inspect the shaft threads, sprocket teeth, and bear- ing surfaces. Minor nicks on the teeth can be Examine the drive chain and shaft bearings. Replace the chain and both sprockets if the chain is LOW RANGE ANNULUS GEAR Inspect annulus gear condition carefully. The gear is only serviced as part of the front case. If the gear FRONT/REAR CASES AND FRONT RETAINER Inspect the cases and retainer for wear and dam- age. Replace the input retainer seal; do not reuse it. Check case condition. If leaks were a problem, look for gouges and severe scoring of case sealing sur- Check the front case mounting studs and vent tube. The tube can be secured with Loctite™ 271 or Fig. 33 Shift Forks 1 - RANGE FORK Fig. 34 Shift Fork And Wear Pad Locations 1 - RANGE FORK 21 - 548 TRANSFER CASE - NV233 AN TRANSFER CASE - NV233 (Continued) |