modifyer only works if it's a limited slip diff.
my 2004 ST was doing that on sharp turns
& it came down to tires rubbing on inner fenders.
Ford has a fix go to next size down.Only did it
on sharp turns I can live with it.
just got my 2007
the tunel cover is great but i can't lock it.
ign key fits but won't lock it.
Dealer trying to work on the prolbem.
feel i might be getting the run a round.