Mark LT 4WD V8-5.4L VIN 5 (2006)
7. CAUTION: Under no circumstances is the pinion nut to be backed off to reduce drive pinion bearing preload. If reduced drive pinion bearing
preload is required, a new drive pinion collapsible spacer and pinion nut must be installed.
CAUTION: Remove the special tool while taking drive pinion bearing preload readings with the Nm (inch lbs.) torque wrench.
Using the special tool to hold the pinion flange, tighten the pinion nut.
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Rotate the drive pinion occasionally to make sure the drive pinion bearings are seating correctly.
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Install a Nm (inch lbs.) torque wrench on the pinion nut.
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Rotating the drive pinion through several revolutions, take frequent drive pinion bearing preload readings until the original recorded drive
pinion bearing preload reading is obtained.
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If the original recorded drive pinion bearing preload is lower than specifications, tighten to the appropriate specifications for used drive pinion
bearings. If the drive pinion bearing preload is higher than specification, tighten the pinion nut to the original reading as recorded.
8. Position the driveshaft and align the index mark on the pinion flange.
9. CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. To make sure that the driveshaft centering socket yoke
seats squarely on the pinion flange, tighten the driveshaft flange bolts evenly in a cross pattern.
Install the driveshaft flange bolts.
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Tighten to 103 Nm (76 ft. lbs.).
