nckwltn
Explorer
you will want to swap the pinion flange from your 1999 onto the 1994 rear diff. It's easy but be sure to torque the pinion flange to spec (way up there). You may get lucky and it's a late model '94 with the smaller pinion flange and it'll just work but I wouldn't count on it.
cool, thanks! I think it's 150 ft lbs (or something in that neighborhood)