PREFORMACE CENTER.
THEY WILL SELL U :q:q:q:q THAT THEY KNOW WONT FIT YOUR CAR.

Isn't the first time I have heard of them doing exactly this. They just have a catalog of universal crap that won't fit your car, and then when it doesn't fit and you try to return it, they screw you on the return.

Just for giggles, I decided to look up the Mark VIII:

Let's see what "lockers" we have here:

Drivetrain & Axle > Lockers/Limited Slip Differentials > LINCOLN > 1998 > Mark VIII > Search By Vehicle Applications >



Lock Right Locker For REAR Axle With Open Differential




Bolt Cover: 10
Ring Gear: 7.5inch
Axle Spline: 28



Oops!