F 250 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
for each particular differential ring gear. Shimming behind the inner pinion bearing controls this dimension.
2. Measure between the centerline of the differential ring gear to the back face of the drive pinion. The distance must be 147.6 mm (5.812 inch).
3. If reusing the old differential ring gear and pinion, measure and record the old drive pinion position shim thickness and select a new shim of the
same dimension.
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To change the pinion adjustment, shims are available in the thickness of 0.69 - 1.68 mm (0.027 - 0.066 inch). Measure each shim separately
with a micrometer.
4. If installing a new differential ring gear and pinion, notice the (+) or (-) etching on both the old and new pinion, and adjust the new shim thickness
to compensate for the difference of these two figures. If so equipped, include the oil slinger thickness in the total measurement to correctly set
pinion depth.
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For example, a pinion etched with m+8 (+3) requires 0.08 mm (0.003 inch) less shimming than a pinion etched "0". This means to increase the
mounting distance by the amount etched in the pinion, subtract 0.08 mm (0.003 inch) from the drive pinion position shim selected for
installation. A pinion etched m-8 (3), requires 0.08 mm (0.003 inch) more shimming than a pinion etched "0". In this instance, add 0.08 mm
(0.003 inch) to the drive pinion position shim selected for installation to decrease the pinion mounting distance by the amount etched in the
pinion.
New Pinion Conversion Chart (Metric)
