RichCresci
Well-Known Member
- Joined
- June 20, 2009
- Messages
- 297
- Reaction score
- 5
- City, State
- New Jersey
- Year, Model & Trim Level
- 03 XLS, 06 Mounty
Hello friends,
A few months ago I purchased a new to me 2006 Mountaineer AWD 4.0 with 128,000 miles. When I purchased it, I noticed the left rear cv shaft was newish. About 3,000 miles later and after a 100 mile highway drive, I noticed the rear differential cv seal had let go on the newish axle. As it is my daily driver I went to my local Autozone and bought a new seal. When I replaced it, I noticed the new seal was no where near as hefty as the factory one and it had appeared as though someone tried to remove the old seal and failed. I didn't think much of it, did the job, refilled the diff with 75-140 gear oil and went on my way. Its been leak free for about two weeks and 500 miles. Today, I noticed the seal I replaced is dripping for the first time since installation. It's only leaking from the lower 1/4 of the seal though (from 5 o'clock to 7 o'clock).I should note that its 97 degrees out, but either way, it shouldn't leak. I checked the breather and it seems to be working fine. also, the 130,000 mile and 13 year old passenger side seal is holding strong.
Does anyone have any experience with Autozone seals? Is the motorcraft one any better? The bearing in the axle seems tight as can be, I just find it hard to believe that the new seal isn't doing its job. I also find it strange how its only leaking from the bottom, if it were the bearing I feel like it would leak from all over.
Any insight would be greatly appreciated. Thank you
A few months ago I purchased a new to me 2006 Mountaineer AWD 4.0 with 128,000 miles. When I purchased it, I noticed the left rear cv shaft was newish. About 3,000 miles later and after a 100 mile highway drive, I noticed the rear differential cv seal had let go on the newish axle. As it is my daily driver I went to my local Autozone and bought a new seal. When I replaced it, I noticed the new seal was no where near as hefty as the factory one and it had appeared as though someone tried to remove the old seal and failed. I didn't think much of it, did the job, refilled the diff with 75-140 gear oil and went on my way. Its been leak free for about two weeks and 500 miles. Today, I noticed the seal I replaced is dripping for the first time since installation. It's only leaking from the lower 1/4 of the seal though (from 5 o'clock to 7 o'clock).I should note that its 97 degrees out, but either way, it shouldn't leak. I checked the breather and it seems to be working fine. also, the 130,000 mile and 13 year old passenger side seal is holding strong.
Does anyone have any experience with Autozone seals? Is the motorcraft one any better? The bearing in the axle seems tight as can be, I just find it hard to believe that the new seal isn't doing its job. I also find it strange how its only leaking from the bottom, if it were the bearing I feel like it would leak from all over.
Any insight would be greatly appreciated. Thank you