from my experience using lock rites, back when they first came out,(for yota mini truck,fl40,fj55), the weight of the vehicle seemed to have a lot to do with how the lock rite acted...
i ran them front and rear and always had good luck with them. they definetly had better manners in the heavier landcruiser...
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chris hodges
96 fzj80 3x locked, 4"lift, 37s, homebrew sliders and bumpers,a work in progress
71 fj55, SOA, locked...The jungle bus... retired