I have a 98 GT with a 5 speed, and to my surprise both wheels spin the same direction when they are spun with the rear end on jack stands. Wondering if the trac lock or posi rear end was an option on V8 cars of this year or if it was standard. Reason I ask is my buddy has a 92 5.0 and it does not have posi. Once in a while he'll get a gimpy burn out. Just looking for some info. Thanks.

