How-To: Pinion Seal - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 06-08-2009
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How-To: Pinion Seal

This is how to replace a pinion seal. a 31 spline 8.8 with a Torsen limited slip was used for this demonstration.

Thank you to Tyler (0RangerEdge2) for taking the pics and helping out!

Total Time : 20 mins

WARNING: do not eat before you look at the pics, the guy in the pics is ugly...

Raise the vehicle and remove the diff cover if you are planning to change the fluid at this time.
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Mark the driveshaft location on the pinion flange and the driveshaft flange
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Remove the driveshaft bolts using a 12pt 12mm socket
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Tie the driveshaft up and out of your way
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Mark the pinion flange orientation on the diff housing
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Mark the nut orientation on the pinion stud and the pinion stud orientation to the pinion flange
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Measure the depth of the stud protruding from the pinion nut
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Remove the 1 1/16" nut to remove the pinion flange
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Tap the pinion flange off of the pinion
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watch that you dont get sprayed with gear oil like was
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Remove the pinion flange
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Remove the pinion seal
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Install the new pinion seal
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Install the pinion flange making sure all the marks line up that you made earlier
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Re measure the pinion stud depth and tighten the nut down until the marks line up
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Re install the driveshaft making sure the mating surfaces are clean
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Put the diff cover on and fill with fluid and you are good to go!

hope this helps!
Attached Images
File Type: jpg 100_3805.jpg (52.3 KB, 21 views)

Last edited by Toreador4x4; 06-08-2009 at 10:32 PM.
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