E 350 Van V8-7.3L DSL Turbo VIN F (1995)
Pinion Gear: Adjustments
Two separate adjustments affect drive pinion and ring gear tooth contact: pinion depth and pinion to ring gear backlash.
Pinion depth is controlled by a pinion locating shim pack installed between drive pinion inner bearing cup and carrier housing. This shim pack and
inner oil slinger controls the position of the pinion. Adding shims moves pinion toward ring gear and removing shims moves pinion away from
ring gear.
Pinion to ring gear backlash is controlled by preload shims located between the differential bearing cup and carrier.
Fig.11 Ring & Pinion Identification
On the button of each drive pinion is marked a plus (+), a minus (-) or a zero (0). These markings indicate the position for each gear set. The
position is determined by amount of shims between inner pinion bearing cup and carrier bearing bore. Any pinion depth change is made by
changing amount of shims.
If the original gear set is being reused, measure the slinger and each shim separately and add each shim measurement to total original
measurement. Replace old shims with new shims that equal this measurement, if necessary.
Fig. 12 Drive Pinion Adjusting Shim Thickness chart (English)
