which is the defferential on my mark?

[miha]

Hi Guys.
Please help me.
How can I know which of rear defferential installed in my mark normal or limited slip? And what is a oil needed for replacement?
Castrol Syntrax Limited Slip 75W-140 or Castrol Axle EPX 80W-90

PS I tried to use search, but didn`t found nessary info.

Car is the Lincoln Mark VIII 94 model year.

 

[Right on the Mark]

You have an OPEN rear meaning no posi. You just need regular gear oil. Also save the flak about saying posi.

 

[chris2523]

Also save the flak about saying posi.

Traction-Lok.

and yes. all mark viii's left the factory with either a 3.07 geared open differential or an LSC with 3.27 geared open differential.

however, all bets are off if anyone has ever taken the differential apart.