Jump to content
TEAM SHELBY FORUM

Aluminum KR Differential Cover..?


oldlugs

Recommended Posts

Duane, you are a gentleman and a scholar. Once again, thanks for climbing underneath and capturing some critical shots.

 

Here is my receipt from yesterday.

post-23237-1259191421_thumb.jpg

 

Here is a shot of the 2001 Explorer cover that I previously cut down next to the 2007 Explorer cover, which matches what Ford used on your KR (note here that the older cover can be used as well).

post-23237-1259191437_thumb.jpg

 

The '01 cover used the 'AC' revision...

post-23237-1259191454_thumb.jpg

 

The '07 cover, and KR piece, uses the 'AB' revision. Thanks for confirming!!

post-23237-1259191467_thumb.jpg

 

This gives you an idea of what needs to be cut off...

post-23237-1259191481_thumb.jpg

 

Note the 'AC' drain plug...

post-23237-1259191511_thumb.jpg

 

And the newer 'AB' drain plug...

post-23237-1259191497_thumb.jpg

 

This shot shows what I did (some four years ago) to the vent hole on my '01 cover. I cut threads and put a pipe plug in its place...

post-23237-1259191530_thumb.jpg

 

<snip>

Thanks for sharing, I'm saving to file as this thread probably has a life limit.

Link to comment
Share on other sites

  • Replies 126
  • Created
  • Last Reply

<snip>

Here is the vent hole, untouched, on the '07 cover...

post-23237-1259192257_thumb.jpg

 

A shot of the right ear that needs to be cut off...

post-23237-1259192269_thumb.jpg

 

Something of interest here. Ford raised the elevation of the fill plug on the newer style cover. I'll have to verify that it works in conjunction with the fill plug on the front of the axle housing (next to the pinion seal). Look closely at the relationship of the fill plug in comparison to the cover bolt holes. Here is the '01 cover...

post-23237-1259192310_thumb.jpg

 

Now compare it to the '07 cover...

post-23237-1259192299_thumb.jpg

 

A back to back comparison of how Ford shrunk down the drain plug as well...

post-23237-1259192320_thumb.jpg

 

Guys, this is a great mod for a great price. Anyone with even a minimum of skills can handle doing this. I simply used a sawzall to cut the ears off. I found the lower tooth count, wood blades, to cut through the aluminum better than a fine tooth metal blade.

post-23237-1259192336_thumb.jpg

 

Then I carefully cut pie slices off, to minimize finish work.

post-23237-1259192349_thumb.jpg

 

I finished the cover up by dressing it up with a belt sander. In the case of the KR, it looks like they used black paint to coat the fresh cut aluminum (and maybe make the mod a bit more discreet as well). I'd really like to find out who the contractor was that did these for Ford, as they are not available from Ford Parts and Service (a 'finished' cover, that is).

 

Again, thanks Duane. You have unearthed some history that may have fallen by the wayside, otherwise.

 

Tob

 

On edit...I also ordered the correct '07 Explorer bolts for this cover. I believe them to be a coated, integral style washer, bolt. For the heck of it I also ordered the '07 vent, just to see how it worked. It may help to have two vents, reducing the lube puking some have been seeing...

post-23237-1259192257_thumb.jpg

post-23237-1259192269_thumb.jpg

post-23237-1259192299_thumb.jpg

post-23237-1259192310_thumb.jpg

post-23237-1259192320_thumb.jpg

post-23237-1259192336_thumb.jpg

post-23237-1259192349_thumb.jpg

Link to comment
Share on other sites

And in case the photo of the recipt isn't clear, here is the part number from the box

post-23237-1259193636_thumb.jpg

 

It won't be long until CS picks up on this and adds them to their inventory. Care to speculate as to what they would charge? :redcard::cry::)

 

Tob

post-23237-1259193636_thumb.jpg

Link to comment
Share on other sites

...It won't be long until CS picks up on this and adds them to their inventory. Care to speculate as to what they would charge? :redcard::cry::)

 

Tob

...Probably more than we'd be willing to spend on it. Since the wrecking yards should be full of 'em in a few years though, I'm sure we'll be able to pull 'em off for $20 or so.

Tob, thanks for doing all the research! I'm going to go have a look at the neighbor's new Explorer... around midnight. ;)

Link to comment
Share on other sites

Heh. Wife has a 2007 Mountaineer Limited (V8, blah, blah). I put down my sandwich, jogged out into the garage, and held my arm out and underneath her car. Tough to see without it up in the air...

Wishbone...

post-23237-1259199938_thumb.jpg

 

post-23237-1259199950_thumb.jpg

 

The 'correct' bolts...

post-23237-1259199962_thumb.jpg

 

The pumpkin, if you will, isn't a bad piece either.

post-23237-1259199973_thumb.jpg

 

LuckySnake, I think the Fays2 wouldn't have any interference from this cover. It projects out ~ 1/2" further from its outermost face (this assumes the ears are gone) than the stock, tin cover.

 

Tob

post-23237-1259199938_thumb.jpg

post-23237-1259199950_thumb.jpg

post-23237-1259199962_thumb.jpg

post-23237-1259199973_thumb.jpg

Link to comment
Share on other sites

I snuck out to the shop before dinner and prepped the cover I bought a couple of days ago. Even taking time for photos and playing with my dogs, it still only took about an hour to take the Explorer cover and cut it down so it resembled to KR unit. I documented it in the hopes that those that might be on the fence regarding their 'abilities' would see this and realize how easy it is to do. All I used was a sawzall, a belt sander, and a couple of clamps to hold it down. Here's a bit of how I did it...

 

I started with a quick mark of the pen, to keep me from veering off my intended line.

post-23237-1259291288_thumb.jpg

post-23237-1259291313_thumb.jpg

 

Grabbed the sawzall, fitted with a 'rough in' blade to do the majority of each cut.

post-23237-1259291331_thumb.jpg

 

Cut away!

post-23237-1259291352_thumb.jpg

post-23237-1259291389_thumb.jpg

post-23237-1259291413_thumb.jpg

 

I found that what works best was to use the rough in blade for about 75% of each cut, followed by a 'Bi Metal' (I like the Milwaukee brand called 'The Torch') to finish the cut all the way through.

post-23237-1259291435_thumb.jpg

 

<snip>

post-23237-1259291288_thumb.jpg

post-23237-1259291313_thumb.jpg

post-23237-1259291331_thumb.jpg

post-23237-1259291352_thumb.jpg

post-23237-1259291389_thumb.jpg

post-23237-1259291413_thumb.jpg

post-23237-1259291435_thumb.jpg

Link to comment
Share on other sites

<snip>

 

Done with the cutting, I started with the beltsander. I used whatever belt was already in it, I think it was about 90 grit. This is after about thirty seconds...

post-23237-1259292834_thumb.jpg

post-23237-1259292851_thumb.jpg

 

This was how the other side looked after cutting...

post-23237-1259292909_thumb.jpg

post-23237-1259292924_thumb.jpg

post-23237-1259292941_thumb.jpg

 

This time maybe forty five seconds with the belt sander...

post-23237-1259292962_thumb.jpg

post-23237-1259293012_thumb.jpg

 

For posterity, the gasket face side of the cover

post-23237-1259293088_thumb.jpg

 

And that is it! For approximately 1/4 of the cost of the FRPP cover and a minimum of effort. Nice thing this cover offers is increased panhard bar clearance over the FRPP cover.

post-23237-1259292834_thumb.jpg

post-23237-1259292851_thumb.jpg

post-23237-1259292909_thumb.jpg

post-23237-1259292924_thumb.jpg

post-23237-1259292941_thumb.jpg

post-23237-1259292962_thumb.jpg

post-23237-1259293012_thumb.jpg

post-23237-1259293088_thumb.jpg

Link to comment
Share on other sites

<snip>

 

I then chose to clean up around the circumference of the gasket flange face.

post-23237-1259293822_thumb.jpg

post-23237-1259293838_thumb.jpg

 

In a nutshell...

post-23237-1259295227_thumb.jpg

 

Next to the '01 Explorer cover I did about four years ago...

post-23237-1259295242_thumb.jpg

post-23237-1259295256_thumb.jpg

post-23237-1259295267_thumb.jpg

 

All that is left is to coat it in either clear (similar to the FRPP cover) or just blast it with gloss black (ala the KR). A rather quick and painless piece of work if I may say so.

 

Happy cutting!

 

Tob

post-23237-1259293822_thumb.jpg

post-23237-1259293838_thumb.jpg

post-23237-1259295227_thumb.jpg

post-23237-1259295242_thumb.jpg

post-23237-1259295256_thumb.jpg

post-23237-1259295267_thumb.jpg

Link to comment
Share on other sites

OK - got under the car again, this time armed with a light so I could see, and my wife's little pocket camera.

Here are a couple more pictures of the diff cover, and the numbers on it, and my axle code label.

 

post-26506-1258863773_thumb.jpg

 

post-26506-1258863793_thumb.jpg

 

post-26506-1258863824_thumb.jpg

 

post-26506-1258863839_thumb.jpg

 

 

I sure wish Ford had spent the extra $ to paint this thing...

Anyone recognize that cover as being used on another car..?

 

 

These covers were installed at the Shelby Mod shop as part of the KR package... if you look up above they also installed a over flow resivor that allows the fluid to drain back into the rear diff

Link to comment
Share on other sites

This thread is so rich with interesting items!

 

That link, http://cgi.ebay.com/ebaymotors/ws/eBayISAP...%3D1&_rdc=1 , is very interesting. I see no part numbers cast onto it, aside from a cast in Ford oval. The groove on the gasket face nearly matches the cast Explorer/Mountaineer cover, which has me thinking it may not be aftermarket afterall. The fact that the bosses are cast for a fill/drain plug but not machined has me thinking one thing - prototype.

 

I have never heard mention of an '10 GT500 having this cover, nor have I ever seen it before. That said, I like it!!

 

Tob

Link to comment
Share on other sites

Here's a pic of the underneath of mine - if that helps..

3718215610_d8e6b96ccb.jpg

 

Hey Sandy don't let them lift your car at those spots anymore! We have already seen the unibody under the k-member bent in from a lift exactly where they are lifting yours. The rear is wrong as well not supposed to lift there either. Have them lift at the pinch welds on the sides where the jacks go next time.

Link to comment
Share on other sites

I've been trying to think that through Duane. This statement has me wondering...

These covers were installed at the Shelby Mod shop as part of the KR package

 

I didn't think that CS' "Mod Shop" had a part in KR production. Especially since the axle used in this application was actually the '08-'09 Bullitt unit, installed under the car at the Ford factory and not by Shelby (this information was from Bud at Shelby). But more and more I'm thinking that the cover was installed by Shelby in Vegas. Why? The hardware. There is no way that the hardware shown in the photos you linked (I forget Duane - your car?) would pass Ford's quality standards. Look closely at it...

post-23237-1259438300_thumb.jpg

post-23237-1259438322_thumb.jpg

 

It had to be installed by someone after the vehicle left Ford's hands. It makes sense that it was done at Shelby, especially since it would seem the hardware choice was inconsistent. Another photo previously linked shows the proper Explorer bolts being utilized...

http://im1.shutterfly.com/media/47b9cf04b3...3D720/ry%3D480/

 

This all has me wondering if it was CS people that modified the Explorer covers as well, which may have tied the 'Mod Shop' into all of this. Amazing that CS people are always so quiet about things like this...

 

Tob

 

On edit...Sandy, if you have a higher resolution photo of the above could you please forward the link to me via pm? I can't tell for sure, but it looks like generic hardware was used on that cover as well...

Link to comment
Share on other sites

Hey Tob, I ordered the cover at a cost of $56.62 and the bolts are $2.49 each but are on back order. Do you think the KR used a machined plug for the vent hole? It appears to me, the "KR" cover will require modification for use with a watts link. The cover only 1/2 deeper isn't an issue, it's the ribs.

Link to comment
Share on other sites

Hey Tob, I ordered the cover at a cost of $56.62 and the bolts are $2.49 each but are on back order. Do you think the KR used a machined plug for the vent hole? It appears to me, the "KR" cover will require modification for use with a watts link. The cover only 1/2 deeper isn't an issue, it's the ribs.

post-5223-1259443726_thumb.jpg

Link to comment
Share on other sites

Hey Sandy don't let them lift your car at those spots anymore! We have already seen the unibody under the k-member bent in from a lift exactly where they are lifting yours. The rear is wrong as well not supposed to lift there either. Have them lift at the pinch welds on the sides where the jacks go next time.

 

Ok thanks

 

And this was done by a Uk Roush mechanic ! ... :banghead:

Link to comment
Share on other sites

I've been trying to think that through Duane. This statement has me wondering...

 

 

I didn't think that CS' "Mod Shop" had a part in KR production. Especially since the axle used in this application was actually the '08-'09 Bullitt unit, installed under the car at the Ford factory and not by Shelby (this information was from Bud at Shelby). But more and more I'm thinking that the cover was installed by Shelby in Vegas. Why? The hardware. There is no way that the hardware shown in the photos you linked (I forget Duane - your car?) would pass Ford's quality standards. Look closely at it...

KRcover.jpg

KRcovershowingitgroundandwrongbolthardware.jpg

 

It had to be installed by someone after the vehicle left Ford's hands. It makes sense that it was done at Shelby, especially since it would seem the hardware choice was inconsistent. Another photo previously linked shows the proper Explorer bolts being utilized...

http://im1.shutterfly.com/media/47b9cf04b3...3D720/ry%3D480/

 

This all has me wondering if it was CS people that modified the Explorer covers as well, which may have tied the 'Mod Shop' into all of this. Amazing that CS people are always so quiet about things like this...

 

Tob

 

On edit...Sandy, if you have a higher resolution photo of the above could you please forward the link to me via pm? I can't tell for sure, but it looks like generic hardware was used on that cover as well...

 

Tob

 

Have a look at my flickr link - there are a few underside shots and they are all high resolution:

 

JerseySandy's Flickr KR Gallery

 

I hope this is helpful to you

 

Best Regards

Link to comment
Share on other sites

Tob

 

Have a look at my flickr link - there are a few underside shots and they are all high resolution:

 

JerseySandy's Flickr KR Gallery

 

I hope this is helpful to you

 

Best Regards

Hey Sandy, thanks. I made a crop of the best shot of the diff cover:

 

4142269616_6dededc08a_b.jpg

 

Looks like the same cad-plated grade 5 hardware my KR has.

 

Duane

Link to comment
Share on other sites

Do you think the KR used a machined plug for the vent hole?

Difficult to answer that question judging by the lone photo I've seen from the outside of the cover. I'd love to see it up close for myself. I've got a few ideas swirling in my head regarding what I may do. I'll wait to see what the Explorer part that went there looks like first...

 

It appears to me, the "KR" cover will require modification for use with a watts link. The cover only 1/2 deeper isn't an issue, it's the ribs.

The ribs off to the side of the ring gear 'bubble' could always be taken down a bit if necessary, but I think it'll clear with room to spare - if my spatial judgement is worth anything. I'll try and get some comparison shots between the Explorer cover and the factory steel one, along with a few dimensions if that will help you.

 

Thanks for the link to those shots Sandy.

 

Tob

 

On edit...I sent the gentleman selling the cover on eBay a short note, not really expecting a response. I just got one.

 

Dear mopar578,

 

This cover doesn't make sense. I own a GT500 and have never heard or seen mention of this cover - anywhere. Every 2010 GT500 I have seen has a steel cover. I also notice there is no part number either. Was this a prototype? Was this off your car?

 

- Tob

 

His answer...

 

Dear Tob,

 

You will see this soon, maybe not untill 2011. The axle is getting other upgrades also. thanks

 

- mopar578

 

Other upgrades? Paint? Stronger axles? Beefier differential?

I'm in contact with an engineer from SVT to try to find out what is going on with this.

 

Tob

Link to comment
Share on other sites

I've been trying to think that through Duane. This statement has me wondering...

 

 

I didn't think that CS' "Mod Shop" had a part in KR production. Especially since the axle used in this application was actually the '08-'09 Bullitt unit, installed under the car at the Ford factory and not by Shelby (this information was from Bud at Shelby). But more and more I'm thinking that the cover was installed by Shelby in Vegas. Why? The hardware. There is no way that the hardware shown in the photos you linked (I forget Duane - your car?) would pass Ford's quality standards. Look closely at it...

post-23237-1259438300_thumb.jpg

post-23237-1259438322_thumb.jpg

 

It had to be installed by someone after the vehicle left Ford's hands. It makes sense that it was done at Shelby, especially since it would seem the hardware choice was inconsistent. Another photo previously linked shows the proper Explorer bolts being utilized...

http://im1.shutterfly.com/media/47b9cf04b3...3D720/ry%3D480/

 

This all has me wondering if it was CS people that modified the Explorer covers as well, which may have tied the 'Mod Shop' into all of this. Amazing that CS people are always so quiet about things like this...

 

Tob

 

On edit...Sandy, if you have a higher resolution photo of the above could you please forward the link to me via pm? I can't tell for sure, but it looks like generic hardware was used on that cover as well...

 

Hey Tob, modified and installed by SAI makes a lot of sense to me. Were these early in the KR builds? When did they stop installing these? Just curious...

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.


×
×
  • Create New...
...