mine were put in really well. took it easy the first day.... second day I drove from DAllas to Austin, third day I drove on their beach, almost got er stuck lololol, then a couple days later returned to dallas.
Na na na just needa be changed obviously they aren't tracking right they needa put some paste on em an check the coast an heel an adjust em an take some more backlash measurements. 4.11s have a very steep angle so they can be tricky to get right