I had one in a 12 bolt in my 4x4. Abused the hell out of it (it was one of the good ones) The ones they made before it were trash. I believe it had a samller gear in or something. Not sure, but I am sure someone will reply that does know. I do know the one I had was tuff.
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67 stepside 4x4 Owensville MO
mudder67@hotmail.com