another option is swapping out the whole rear axle for a posi one, would cost around 500 or so. And then id have the original as a back up, since it only has 70k miles on it.
It seems a posi diff(aftermarket) cost at least 500.
Can i get a kit or something for the dana to covert the open to a posi?
or even something like this?
http://www.ebay.com/itm/DANA-70-80-3...-/110550564897