I purchased my car with an upgraded 12 bolt already installed. I "THINK" when I pulled rear tires a long time ago I saw strangle axles, not certain to that at all. I searched summit for strange 12 bolts and it has the chrome diff cover, but that is no definite tell tale. Is there anyway I can figure out which rear end I have? Any serial numbers or tag identification numbers I can find somewhere hidden on rear end? I have tried to contact previous owner, but only through tech and has not responded yet.

Thanks in advance.

 

The axles will say Strange on each end and also on the back of the big ball of the differential unit.