ive been watching an eaton locker on ebay. it came from a stock s10. are these units any good for a street/strip car? or should i just get a posi unit?

 

Yeah those are on ebay all the time for a reason. Stay as far away from those as you can. They're called the Eaton Gov-Lock, but everyone I know calls them the "Grenade-Lock" because they explode into lots of pieces when you put any decent amount of power to them. Grab a clutch type posi from Eaton or Auburn and you'll be much better off.