F 350 4WD Pickup V8-7.3L DSL Turbo VIN F (1994)
pinion bearing preload.
5. Center proper gauge tube into differential bearing bore, install bearing caps and tighten to 80-90 ft lb. To preload bearings, torque handle to 20-40
inch lb.
6. Using suitable feeler gauges, select thickest feeler gauge that will fit between gauge tube and gauge block. Insert feeler gauge directly along gauge
block to ensure a correct reading. Feeler gauge should fit between gauge tube and gauge block with only a slight drag.
7. After correct feeler gauge feel is obtained, thickness of feeler gauge used to obtain slight drag-type feel is the thickness of shims required,
provided new pinion gear is marked with a zero (0). If new pinion gear is marked with a plus (+) reading, the plus (+) amount stamped on pinion
gear must be subtracted from thickness dimension obtained in preceding step. If new pinion gear is marked with a minus (-) reading, the minus (-)
amount stamped on pinion gear must be added to thickness dimension obtained in preceding step. Also, you must use same new inner pinion
bearing that was used to obtain this dimension.
Fig. 14 Bearing Installation On Drive Pinion
8. Measure shims with a micrometer to verify size, then place oil slinger, if required, onto pinion and press on bearing. If a baffle and/or slinger is
used, replace with a new one upon assembly and measure as part of the shim stack.
9. Lubricate ends of outer pinion bearing rollers with a suitable high-temperature lubricant.
BEARING CUP INSTALLATION
1. Clean bore and, if installed, remove cup. Place oil baffle first and required amount of shims in inner pinion bearing bore and drive inner pinion
bearing cup in place using suitable pinion bearing cup replacer and forcing screw. Use care not to cock cup.
2. Place outer pinion cup into carrier and drive in place. Draw cups into bore.
3. Lubricate ends of outer pinion bearings rollers. Install outer bearing cone into place in outer bearing cup.
4. Install inner bearing cone and slinger onto pinion. Drive bearing on pinion shaft until fully seated using suitable pinion bearing replacer.
DRIVE PINION PRELOAD INSPECTION
1. Install pinion into carrier, then new preload shims over pinion.
2. Install outer pinion bearing and oil slinger.
3. Coat drive pinion oil seal with suitable hypoid gear lubricant or equivalent, then install drive pinion oil seal using suitable oil seal replacer. After
installation, ensure garter spring did not pop out. If garter spring pops out, remove and replace seal.
4. Install yoke using tool No. T83T-4851-A, or equivalent, then install washer and nut and torque to 200-220 ft lb.
5. Place an inch-pound torque wrench on pinion nut and check pinion rotational tightening. Rotational torque should be 20-40 inch lb.
