Which Differential Cover AND Why???
I like ARB's if I was in the market because of the location of the dipstick/oil plug at the top -- allowing you to fit more oil in the differential than the the attempted minimal amount that many of us get frustrated trying to fulfill.
I've heard the Solid's leak so I went with Poison Spyder. I'm 99% positive that the Poison Sypder ones are made by Riddler, just a different logo stamped. Mine should be here Thursday, can't wait.
I bought and just installed the Riddler covers for my Rubicon because I was impressed by the JP magazine strength comparison, plus I like the fact that they fit the lockers with no grinding and don't bind on any steering/sway linkage.
I bought mine from Northridge and they included the Lubelocker gaskets.
One word of caution... The lubelockers called for a final torque of 35ft lbs for each bolt on the diff cover. One of the grade 5 bolts included with my Riddler actualy broke at about 30 ft pounds!!! Bad news
Looks like they are using poor quality hardware. I hand snugged the rest of the bolts and have been checking for leaks. None so far!
I bought mine from Northridge and they included the Lubelocker gaskets.
One word of caution... The lubelockers called for a final torque of 35ft lbs for each bolt on the diff cover. One of the grade 5 bolts included with my Riddler actualy broke at about 30 ft pounds!!! Bad news
Looks like they are using poor quality hardware. I hand snugged the rest of the bolts and have been checking for leaks. None so far!

just my
I went ahead with the riddlers on my rig, wheeled with 2 fellow jk owners that have the Solids. Watched them both take a hard hit. I dont think you can wrong with either one. They are both better than the stockers.
I went with the Solids. The price was absolutely right, the grinding was a piece of cake even if you have to hire it done and they are really tough. After whackin a rock all you have to do is dust off the rock dust when you get home
As far as leaks I went with lube lockers. They have been tight as a drum and I have hit the covers hard on more than one occasion.
One thing that nobody mentioned was the heavy duty covers add strength to the entire differential housing.
One thing that nobody mentioned was the heavy duty covers add strength to the entire differential housing.
I went with Riddler's front/rear and glad I did before my last off-road outing. I painted them to match the AEV Argent wheels... but now I need some touch-up after some contact with rocks. They did their job though !!! 

The only problem I've noticed is that they are rubbing my Full Traction trackbar (you can see the scratch on the top of the diff cover)

The only problem I've noticed is that they are rubbing my Full Traction trackbar (you can see the scratch on the top of the diff cover)


