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REAR END LEAK


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Alright, I am new to the SHELBY world.. Traded in my 04 Cobra for this Shelby which has been nothing but issues..

 

1st. Got it on July 14, 2009 with 60miles on the Odometer. According to ford oasis it was delievered with 55miles to the dealership I got it from.

2nd On July 16, 2009 Got a issue with the Tranny not going into 4th gear.. Vehicle vin is not part of the TSB. But, the dealership replaced the entire tranny. :)

3rd Got it back on July 18, 2009 and a real bad vibration in the rear.. Took it to the dealer and found Driveshaft was bad. Replaced the entire Driveshaft.

4th Got the car back on Aug 5, 2009 got to drive it for about 4 days and today, I decided to get under the car just to look at the suspension and get familiar with the car. Then I noticed all this.

 

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SHOULD I TAKE IT BACK? Just getting used to the car:)

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Alright, I am new to the SHELBY world.. Traded in my 04 Cobra for this Shelby which has been nothing but issues..

 

1st. Got it on July 14, 2009 with 60miles on the Odometer. According to ford oasis it was delievered with 55miles to the dealership I got it from.

2nd On July 16, 2009 Got a issue with the Tranny not going into 4th gear.. Vehicle vin is not part of the TSB. But, the dealership replaced the entire tranny. :)

3rd Got it back on July 18, 2009 and a real bad vibration in the rear.. Took it to the dealer and found Driveshaft was bad. Replaced the entire Driveshaft.

4th Got the car back on Aug 5, 2009 got to drive it for about 4 days and today, I decided to get under the car just to look at the suspension and get familiar with the car. Then I noticed all this.SHOULD I TAKE IT BACK? Just getting used to the car:)

 

My experience is that this is just a slight overfill at the factory and it is leaking from the vent tube which should be right up on the top of the wet spot, not harm no foul, will let others chime in, but you should be fine, mine did the same and not issues in two years and 6 k miles, good luck with the car,

 

Phil

Edited by FastPhil
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My experience is that this is just a slight overfill at the factory and it is leaking from the vent tube which should be right up on the top of the wet spot, not harm no foul, will let others chime in, but you should be fine, mine did the same and not issues in two years and 6 k miles, good luck with the car,

 

Phil

 

 

I can see everything near the vent tube but, what about under the pumpkin?

 

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Since it's new, if it were me, I'd probably take it back.

 

Just to be on the safe side... have them look at it, and make sure nothing is wrong. Document that they looked at it just in case they say it's fine and then it later craps out on you.

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+1

 

Find the SVT Tech and talk with him Make friends with him. If the dealer doesn't have on your more than welcome to find a dealership with one.

An SVT tech as a friend is the best way.

I am still lookin for the tech at my dealer they always have him working his ass of on company trucks etc... so they say...

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Take it in for service. I have 26,000 miles on my 500 and have never seen any kind of "sweating" on the banjo housing.

 

Even if the PDI technician overfilled the housing, the dealer should have steamed or pressure washed the differential housing as a courtesy as well as to insure that there are no leaks.

 

What really suprises me is that the dealer just replaced your driveshaft; they HAD to have seen the residue on the housing, but did nothing about it.

 

Don't let TS member "Grabber" see this forum. He is one fastidious dude, and if he sees this, he'll fly into your hometown to prep and paint your differential housing fo you! :hysterical:

 

All joking aside, I recommend that you take your car back into service.

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Take it in for service. I have 26,000 miles on my 500 and have never seen any kind of "sweating" on the banjo housing.

 

Even if the PDI technician overfilled the housing, the dealer should have steamed or pressure washed the differential housing as a courtesy as well as to insure that there are no leaks.

 

What really suprises me is that the dealer just replaced your driveshaft; they HAD to have seen the residue on the housing, but did nothing about it.

 

Don't let TS member "Grabber" see this forum. He is one fastidious dude, and if he sees this, he'll fly into your hometown to prep and paint your differential housing fo you! :hysterical:

 

All joking aside, I recommend that you take your car back into service.

 

Thanks for the input, I am waiting to get off work to take it in...

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+1 on taking it back in. Mine has "vented" diff fluid while on track many times. When that happens, it forms a fine mist over "EVERYTHING" from the axle back to the rear fascia; but only on the passenger side. I never saw anything on the tube or the bottom of the pumkin.

 

Best guess is that the vibration in the shaft might have broken the seal on the diff cover............

Edited by sprint200
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From the pictures it looks like there are two leaks, one from the axle vent and another around the cover, left side and bottom 180 degrees, where all the oil resides. The factory gasket is an RTV type form-a-gasket; probably wasn't applied very well. Fluid should not leak from the vent tube unless the differential was overfilled or from spirited driving sloshing the fluid to that side.

 

I used a Lube Locker gasket P/N LLR-F880 when I installed the Ford Racing Axle Girdle - works great and never leaks.

 

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Edited by 6-Speed
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We recommend that if you are using a T/A cover or our Watts link that you do NOT use the gasket. We just use RTV, and have had no leaks after hundreds of installs.

 

Also its normal to see oil on the top of the passenger side as that is the vent for the axle. There should be a little plastic cylinder sticking up there, although we have come across cars that were missing them. Sustained high speeds or open tracking the car will usually make that area wet, even with the vent in place. We make a small overflow container to keep things clean down there.

 

Colin Sebern

Griggs Racing

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We recommend that if you are using a T/A cover or our Watts link that you do NOT use the gasket. We just use RTV, and have had no leaks after hundreds of installs.

 

Also its normal to see oil on the top of the passenger side as that is the vent for the axle. There should be a little plastic cylinder sticking up there, although we have come across cars that were missing them. Sustained high speeds or open tracking the car will usually make that area wet, even with the vent in place. We make a small overflow container to keep things clean down there.

 

Colin Sebern

Griggs Racing

Colin is correct as I had the same issue. I didn't like gear oil bleeding out through the valve on top of the axle casing. There is nothing wrong with your car regarding the oil on the axle; the oil coming out of the pumpkin is a different story.

 

Griggs makes a small recovery canister that bolts on to the rear differential that takes care of the problem. I had John Griggs install it on my car when I put in the Griggs suspension. The canister works great; no more oily mess. I'll try and get my IPhone out to take a picture of it.

 

For the oil leak from the pumpkin, I recommend not using a gasket as Colin has suggested. Griggs didn't install one on my TA cover and I don't have any issue.

 

Dana

Edited by idrathergolf
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  • 1 month later...

SEPT 13, 2009 - Car has less than 1800 miles on the odometer and I take the car to my Military Auto Hobby Shop to take more pictures.. And this is what I find :(

REAR END STILL LEAKING AFTER TAKING IT TO THE SHOP:(

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FOUND MORE LEAKS FROM DIFFERENT LOCATION:(

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MORE PICTURES HERE

 

Happy to tell you that this is normal operation. Mine did the same thing with 300 miles on the odo. Yours and mine and many others were over filled at the factory and the extra lube just leaked out the vent on the top of the axle. Thats what its there for, so the fluid has somewhere to go and not leak out of the pumpkin. The fluid you are seeing on the bottom of the pumpkin is runoff from the top of the axle. I did the same as you and freaked out, but my local dealer called the factory and showed them pics. The factory said that very few don't do this. They over fill them for breakin and the extra stuff just leaks out. Some more excessive than others. Mine did all its leakin in the first 1500 miles and has tapered off. They told me that if I ever hear any noise from the rear to bring it back in, but so far at 4000 miles mine is fine. The dealer and Ford claim its fine and yours must have been way over filled. BUT, it is normal unless you have rearend noise. Worry not.

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  • 4 weeks later...

I just discovered leakage from my pumpkin as well, but I have a Saleen Watts Link. Thing is, I hadn't driven the car in over a month and just discovered it. I have no idea why it started leaking, but I must assume the seal is bad. Does anyone have any suggestions? Remove the gasket, etc?

 

Thanks!

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