F 250 2WD Super Duty V8-6.0L DSL Turbo VIN P (2004)
3. NOTE: An inspection can find the cause of the concern and determine the resolution.
Carry out the following before disassembly.
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Remove all the lubricant from the internal parts of the conventional differential assembly or Trac-Lok differential assembly. Visually inspect
the parts for wear and damage.
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Rotate the differential assembly to check for any roughness, indicating damaged bearings or gears.
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Remove all the lubricant and check the differential ring gear and pinion teeth for signs of scoring, abnormal wear, nicks and chips.
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Use a magnet to search for heavy metal particles indicating component damage.
4. CAUTION: The differential ring gear and pinion must be clean and dry to obtain an accurate reading.
NOTE: Measure the differential ring gear and pinion backlash at three equally spaced points.
Using the special tools, measure the differential ring gear and pinion backlash.
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The backlash tolerance is 0.13 - 0.20 mm (0.005 - 0.008 inch) and cannot vary more than 0.05 mm (0.002 inch) between points checked. A
backlash variation of more than 0.05 mm (0.002 inch) indicates gear/case runout.
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Move the differential ring gear toward the pinion to correct high backlash.
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Move the differential ring gear away from the pinion to correct low backlash.
5. Remove the axle shafts.
6. Index-mark the driveshaft components to maintain driveline balance during assembly.