I suspect the ggr ones are better. I have ebay ones on my 4x4 with 500ftlb of torque but it has only done a few hundred miles on them so don't really know. I think that if you are making over 400 ftlb, especially low down, with a good lsd diff then the extra money is worth it, less power and an open diff (I think all std front diffs are open) then less of an issue. Also depends on how you drive it.