Do I have a Limited Slip Differential?!?!?

Called the dealership today and provided them my VIN. They confidently tell me I don't have LSD. But my sales sticker says I do and I have no tag on the differential itself calling for LSD oil! So where do I go from here??? Any advice wou ld be greatly appreciated.

 

So would 75-90 fluid with LS work? also, the dealership recommended 75-95 but I havent seen that anywhere on here.

 

Thanks! my head was starting to spin... Any particular reason you go non synthetic?

 

I think Ill head to the auto parts store and pick up some Lucas. Do you use the same for Front and Transfer?

 

http://lucasoil.com/products/gear-oil/gear-oil/lucas-heavy-duty-80w-90-gear-oil Is this what youre using?

 

75W90 is fine. I've never heard of 75w95, but they do make a 75w85 now.