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sprinkles08
sprinkles08, ASE Certified Technician
Category: Jeep
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Experience:  Chrysler/Dodge/Jeep Master Certified, ASE Master and Advanced Certified, Trans and Hybrid Specialist
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what is a front pinion seal where is it located and what does

Resolved Question:

what is a front pinion seal? where is it located and what does it do? I have a 00 jeep grand cherokee larado.
Submitted: 5 years ago.
Category: Jeep
Expert:  sprinkles08 replied 5 years ago.

Hello and welcome to JustAnswer!

 

A pinion gear is the gear in the differential that is basically mounted to the driveshaft. It engages with the ring gear in the differential, and that is what transmits power to the wheels. The pinion gear comes though the housing of the differential, and the pinion yoke mounts to it, the yoke is what bolts to the driveshaft. Where the gear comes through the case there is a seal to keep the differential fluid in. It's not uncommon for these to leak on the Dana axles in the Jeeps. The front pinion seal is the pinion seal on the front differential in your Jeep.

Customer: replied 5 years ago.
How much does this cost to get fixed at a dealer? Is it unsafe,how long can I go without getting it fixed. I just had a water pump and thermostat put in for $650.00.I am kind of short on money right now....thanks.
Expert:  sprinkles08 replied 5 years ago.

I fully understand being short on money! It's hard to say how long you could go without fixing it. It depends on how bad it's leaking. If it's just seeping a little, you're ok. If it's leaking badly you could run out of fluid, resulting in complete failure of the differential, that would be well over $1000 to repair. Take a look at it and see how wet it is. If you see actual drips it would be more urgent. I would recommend keeping an eye on the fluid level in the meantime to make sure it doesn't go low.

 

The price of the seal looks to be about $15 and it would be about 1 hour of labor to replace it. You may also have to pay for a quart of fluid to top it back off after the seal is replaced, which wouldn't be much.

 

sprinkles08, ASE Certified Technician
Category: Jeep
Satisfied Customers: 16454
Experience: Chrysler/Dodge/Jeep Master Certified, ASE Master and Advanced Certified, Trans and Hybrid Specialist
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