Rear diff leaking

[Guy]

Well.

20,000 miles and I have my first noticible issue.

I have diff fluid seeping at the rear pumpkin.

I’m going to assume it’s the gasket, but it’s seeping around a decent portion.

I’m going to replace the diff cover and gasket with the Ford Performance One since it was on my to-do list anyway.... and see if it goes away.

If it doesn’t..... what else would it be? The axle seal back there? I don’t like taking my truck to the dealer. They probably wouldn’t cover it anyway and say the mods caused it. So most likely I’ll just give it to my guy.

 

[Raptor911]

you can do it. It is a pretty easy install


FP rear diff install >> https://www.cjponyparts.com/ford-pe...iW2ulQhTR-uT9Tg_8O8xNQHfmGzi9HKxoCbZ4QAvD_BwE

MAG-HYTEC rear diff install >> http://www.fordraptorforum.com/f11/mag-hytec-question-37687/

 

[zombiekiller]

Well.

20,000 miles and I have my first noticible issue.

I have diff fluid seeping at the rear pumpkin.

I’m going to assume it’s the gasket, but it’s seeping around a decent portion.

I’m going to replace the diff cover and gasket with the Ford Performance One since it was on my to-do list anyway.... and see if it goes away.

If it doesn’t..... what else would it be? The axle seal back there? I don’t like taking my truck to the dealer. They probably wouldn’t cover it anyway and say the mods caused it. So most likely I’ll just give it to my guy.

Could be the breather. hard to tell without seeing a pic.

Did you happen to scrape the dif on rocks or something?

Stock ford covers have a habit of peeling up, then snapping back into place when dragged across rocks.

 

[Guy]

Yep I’m not worried about the install.

The breather is a good thought.

No damage to the pumpkin.

you can do it. It is a pretty easy install


FP rear diff install >> https://www.cjponyparts.com/ford-pe...iW2ulQhTR-uT9Tg_8O8xNQHfmGzi9HKxoCbZ4QAvD_BwE

MAG-HYTEC rear diff install >> http://www.fordraptorforum.com/f11/mag-hytec-question-37687/

 

[xrocket21]

why not the AFE? It adds volume and cooling fins.

 

[Guy]

I considered it, but The Ford Performance one just looks so slick.

I think the AFE one will scream their logo to everyone who drives behind me.


Not that that’s a bad thing... I just try to keep a down low style.

why not the AFE? It adds volume and cooling fins.

 

[k-rub]

I had a rear diff leak and had it replaced under warranty with no questions.

 

[Loufish]

I really like the Ford Performance cover...The issue with the others that hold more oil is:
1) They stick out further from the rear end, possibly getting whacked by a rock or such
2) More oil doesn't run cooler, it just takes a little longer to reach operating temp.

Just saying...

 

[xrocket21]

I had a rear diff leak and had it replaced under warranty with no questions.

It shocks me how much value you kids put on fords warranty

---------- Post added at 08:19 PM ---------- Previous post was at 08:18 PM ----------

I really like the Ford Performance cover...The issue with the others that hold more oil is:
1) They stick out further from the rear end, possibly getting whacked by a rock or such
2) More oil doesn't run cooler, it just takes a little longer to reach operating temp.

Just saying...

A larger volume of fluid (plus the cooling fins) will absolutely dissipate more heat. This isn't up for debate, its thermodynamics.

 

[Ruger]

Alternatively there is the Mag-Hytec differential cover. I installed it four years ago and it's a good product. Adds fluid capacity and makes changing the fluid way, way easier.

Having more gear oil doesn't make it run cooler but with modern synthetic multi-viscosity gear oils, operating temperature isn't an issue.