Not many people here run 5.71's, or ever had any luck with them at all.  Generally, if your looking at 5.71's, then you really need to be looking at 1 ton's.  

Majority of us are running 5.29's, and duals, with almost no issues.  There are few running 4.10's and duals, but it's harder on the drivetrain.  The lower gears makes it easier on the drivetrain, especially with a 4 cyl.