They do?! I didn't notice that when I was ordering them

 

Yup. Nice huh?

 

How do these compare to the ARBs?

 

Well I hope rokmen DOT com sends RTV with the order.
From what I've read about these vs the ARBs is that they are a little more slimmer and don't have the lip most diff covers have. Plus the new Teraflex diff covers and the ARB ones look alot alike

 

One problem the D30/D44's have is peel off...as in the edge of the cover catches a rock, etc, and it peels back the cover. The lips that the others come with it to help fight peel off of the cover.

Drop in 3rd member diffs don't really have this problem, but, diffs like the D30/44 do have this problem.

Food for thought.

 

I don't have a link, but somewhere out on the web there's a diff cover shootout. The Riddlers tested very well.

When I mounted mine, I checked with a couple of local experts on the lube lockers. They told me that they leak. Anybody know of any that have leaked?

 

Would this be it?

 

Most of them tested similarly, and, if you were planning a frontal assault on a fox hole, the Great lakes up armored diff cover "won" the competition...but, frankly, I've never seen a jeep hit a rock at even the slowest velocity used, and, none of the testing involved off roading, just shooting at the center of the diff with various weapons.

Peel off, a real issue that occurs to non-drop in-third member diffs, was not addressed.

A better/more relevant test, might have been to swing a weighted diff against a sharp rock, in both directions, with increasing force until failure, etc.

 

I think the Riddlers will do very well protecting against peel off. The covers have no lip and transition smoothly to the diff.

 

Found this video of the Riddler cover being tested from the guys at Rokmen
http://www.youtube.com/watch?v=0G5upBGBej0