when i burn out both sides spin and i havent done anything to my tranny my freind said its the diff goin out and another freind said some trannys posi up and some dont? i was wondering what you guys think...there is a chance that there has been work done in the past but i havent did any work to it my seld

 

To find out, jack up the front and spin one wheel. If the other turns too, you have an LSD.

 

oki will do that and if it dont spin then i dont have a lsd and then its my diff goin out?

 

I don't know if that means your differential is going out, I think it just means that both tires are spinning. It is possible that they can both spin.

 

ok thats works for me thanks