2006 GT-H. Saw a rear differential cover on sale from Shelby Fantastic bargain, $70.00, regular price $200.00 +. It claims to stiffen the rear, and has two adjustable plugs to go onto the bearing caps. Downside is that it needs to have an adjustable panhard bar, and a bracket to relocate driver's side a couple of inches aft. Nice urethane bushings. Well, when I took off the OE bar, and tipped it to put it away, there was something that sounded like sand inside! WTH?? is this just a result of sloppy manufacture, or is there a purpose for this?

 

I am not seeing how a diff cover is going to have anything to do with a PHB. Can you give us a link or picture of this item?

Jazzer welcomes horst to MF's

 

Regarding the OEM bar, that is done for noise reduction.

 

I am not able to provide pictures yet. Sorry to have to admit that.
The Shelby dif cover is made of cast aluminum, about 3/4" thick, a very robust thing! it protrudes further toward the back, and has a bit more capacity. If you look at the cheapo OE tin thing, and look at where the bar goes behind the OE cover there is about 1" clearance; with the new bar, it would nearly be in contact. Thus, you can imagine there would be a possibility to getting problems with interference ... besides, the new adjustable bar is pretty! The urethane bushings are also nice. The OE bar has rubber bushes.
I am tempted to find one for my 1954 Army jeep THAT vehicle is 100% original, and I just have to do something to that will stand out and screw with people's minds.

 

OK.... yes, I imagine some possible clearace issues, but anyone that says this new cover will "stiffen up the rear" is just plain full of it! This cover in and of itself, can do nothing beyond appearance, or maybe some aide in cooling or capacity of oil.

Do you mean this one and on ***THIS*** page?


What in the F are they talking about saying it will "strengthen the rear axle" and "improve overall axle rigidity"???? WTF!

Jazzer calls BS!

 

Brandon's right. They put some sand type stuff in the PHB to reduce NVH. (seems crazy to me)

Assuming that it's a diff cover like this:
http://www.uprproducts.com/mustang-r...ud-girdle.html

then it sticks out a little farther than the factory diff cover, which would make it contact the PHB, so you need a PHB relocating bracket like this:

http://www.uprproducts.com/mustang-p...n-bracket.html

 

BTW Jazzer, the two bolts in the diff cover put tension on the differential bearing caps inside the housing. This mod isn't to strengthen the housing, but rather to reinforce the diff mounting. This is usually used in high load applications that like to spit out differentials.

 

OK.... I hadn't thought of that, but makes better sense. This can be the only reason a cover can "strengthen the rear axle" and "improve overall axle rigidity" I think it is a bit of a stretch to say this, but suppose it comes down to how one describes stuff.

I have heard of sand in the OEM PHB, but wonder how much it actually helps. Just shows to go you that the focus on a drivers comfort is usually set higher than performance

Jazzer

 

Look in here. . . bet this is exactly the difference . . . keeping in mind that the person with that complaint may be unusually bothered by odd or new noises . . .


Norm