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Old 08-22-2012, 07:39 PM   #1
Join Date: Jun 2007
Posts: 90
Slight vibration after front pinion seal replacement?

This past weekend I replaced the leaking front pinion seal on my low pinion dana 30 (01 TJ). I chose the "put everything back exact" method. I marked the front drive shaft, pinion yoke, u-joint, pinion nut, and pinion threads.

When I drive the jeep at 65-70 mph I think that I'm feeling a very slight vibration in my hand through the steering wheel. There is no excessive noise, or heat. There is no play in the pinion yoke.

Am I just hypersensitive after this seal replacement? How long would it take before I would know that I definately didn't put something back to it's original location? And finally, what should I expect if something isn't correct (a bunch of noise, grinding, howling, etc.)?

Thank you in advance.

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Old 08-22-2012, 07:43 PM   #2
Knows a couple things...

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Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 36,301
Sounds to me like you got the pinion nut back to where it should have been, I'd look for a different cause of the added slight vibration if it's not just from an overactive imagination.

When you have a choice, buy American.

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Old 08-23-2012, 07:49 PM   #3
Join Date: Jun 2007
Posts: 90
Thank you


Thank you for the reply. Nothing else was changed so it must be in my head. I'll keep you posted if I notice anything different.
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