I have been hearing that the rear differential leak is caused by heat from the aftermarket catbacks (sitting closer to diff.)
Please take the poll and let's see if this is the case.
Please take the poll and let's see if this is the case.
Leaking Rear Differential Poll - Catback or NOT
- Thread starter cobra101
- Start date
I vote "Where's the poll and what is the specific question?"
I had mine start leaking. Was told it was the catback. When they installed the BF Brace and resealed it, they left the tips sticking out like 5 inches from the back to make more room...I remidied this problem....
I don't believe it was the cat back...but a result of my launches.
I had mine start leaking. Was told it was the catback. When they installed the BF Brace and resealed it, they left the tips sticking out like 5 inches from the back to make more room...I remidied this problem....
I don't believe it was the cat back...but a result of my launches.
Doh! My browser crashed when it went to the following screen to add poll...
Now there is no question. It was to be:
1) no leak
2) leak - no Catback
3)Leak with catback
Oh well...
Ps. I am going to see if ford will put on the brace when they fix the leak. They fixed it once so there should be no warranty issues with my pulley.
Now there is no question. It was to be:
1) no leak
2) leak - no Catback
3)Leak with catback
Oh well...
Ps. I am going to see if ford will put on the brace when they fix the leak. They fixed it once so there should be no warranty issues with my pulley.
cobra101 said:
It is caused by a weak eggshell of a diff cover and only RTV as a gasket.
Brace it before it leaks and it will last.
Exhaust has nothing to do with it, period.
Read the RED PILL while you are at it.
I agree with Postban.
While we are on the subject (warning, thread hijack)
The dealership recently rebuilt my differential (I had the 35 to 45 mph noise). The noise went away but now there is a different noise. It sounds like a weird high pitch squeal while whenever the driveline "tightens" up in 5th gear going at 35 mph.
The dealership is blaming the B-flow brace. I really don't buy it but I have to take it off before they will agree to work on it.
Did the dealership just not set the backlash and tooth pattern correctly?
While we are on the subject (warning, thread hijack)
The dealership recently rebuilt my differential (I had the 35 to 45 mph noise). The noise went away but now there is a different noise. It sounds like a weird high pitch squeal while whenever the driveline "tightens" up in 5th gear going at 35 mph.
The dealership is blaming the B-flow brace. I really don't buy it but I have to take it off before they will agree to work on it.
Did the dealership just not set the backlash and tooth pattern correctly?
well, Final story is the cobra is going to ford. They will NOT install a irs brace because it is not a ford part. They said they wil not install any aftermarket parts, Not even at my own cost.
So, it looks like ford will be redoing this every 10k miles (or less).
I will ask and see if they use the "TA31 Diesel sealant". I hear thats the best.
Ps. Does ford make an irs brace for our cars? I bet they would install that if it exists.
So, it looks like ford will be redoing this every 10k miles (or less).
I will ask and see if they use the "TA31 Diesel sealant". I hear thats the best.
Ps. Does ford make an irs brace for our cars? I bet they would install that if it exists.
thanks for the speedy reply. I dont have the time, space, or tools to do it myself. I will let ford do it again and see which sealant they are using.
thanks again
thanks again
My dealership re-installed mine. Asked me a bunch of questions though.
Mine is leaking for the 2nd time and I have to stock catback piping. So I'm gonna call BS
Stock everything. Leak. 10K mi.
mine just started leaking at 10K; Magna Flow cat back and BF Brace. So is draining and resealing the cover that big of a project? Any suggestions for someone that has never done one? Do you have to drop the IRS? Thanks and sorry for the Hyjack!
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Stock cat back dif leaked at about 7k...
I'm thinking about putting heat wrap on the cat back....
To PROTECT THE CAT BACK!!!!....lol
Diff probably gets hotter that the pipes do back that far!!! 280F is common even just highway driving :nonono:
It's one of the reasons the LSD clutches go out so quick...
Not that open track is hard on them or anything
I'm thinking about putting heat wrap on the cat back....
To PROTECT THE CAT BACK!!!!....lol
Diff probably gets hotter that the pipes do back that far!!! 280F is common even just highway driving :nonono:
It's one of the reasons the LSD clutches go out so quick...
Not that open track is hard on them or anything
Freaking double post :bash: :bash:
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Just got back from the Dealer; they will not touch the leaky diff because of the Brace. Oh well, I got under the car and it looks like the bottom bolt is the breach. So I might just try to take the bolt out clean it up smear some silicone on the bolt and cross my fingers! If not, going to drop the IRS and upgrade everything I can afford!
hurtindude
Banned
don't be scared, it's not hard work. Learn to love working on the IRS, god knows if you keep the car for a while, you will be doing enough of it.
It's really simple actually. I think anyway.
It's really simple actually. I think anyway.
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