Question about 2002 Ford Ranger Regular Cab

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Leak at rear diff (pinion seal?) 03 4X4 ford ranger

I have a 03 Ford ranger that has a leak at the rear diff where the drive shaft hooks into the differential plate. It appears there is a plastic lipped washer and the fluid is coming from there. I believe its a pinon seal problem. I called two mechanics. 1 dealer and 1 corporate chain tire center. One place said it will take a 18.00 part and 7.5 hrs labor. The other one said it will take two hours labor and 50+ or - in fluid and parts for the repair. Who should I trust?

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  • jehharris Apr 23, 2009

    Thank you for your help.

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The part is called the pinion flange seal, pull the drive shaft, remove the large nut on the flange the drive shaft connects to and remove the flange, then pry out the old seal and lube the lip of the new seal with motor oil and press it into the opening. The 7.5 hour estimate is way wrong, about 1.5 hours labor and $4 for the part.

Posted on Apr 23, 2009

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  1. s3b~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the rubber O-ring in the axle shaft groove.
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  1. s3b~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Damage to the rear brake anti-lock sensor (2C190) may occur if it is not removed before the axle shaft.
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  1. s3b~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the wheel bearing oil seal.
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--------------------------------------------------------------------------------------
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-------------------------------------------------------------------
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1 Answer

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