Vari loc is just q diffrent kind of limited slip, nothing special really. About half as good as a real locker. Stock they work good, 32" tires and up they get overpowered and perform like a open diff. Don't beleive everything you read. I have owned my overland for 5 years, q-drive is great for stock rigs or on the street but not even close to lockers.
2002 Overland wj,JK rubicon dana 44s, np231, 6" rock krawler long arm lift,ARB front bumper,warn winch,JCR rock sliders,33" toyo M/T,s.