I don't know, but the only place the wiring harness is cracking on my '95 is under the intake manifold.
Just in case anyone thinks this problem is limited to Ford:
http://groups.google.com/groups?q=crumbling+insulation+harness&start=10&hl=en&selm=20000123212548.03112.00000969%40ng-dh1.aol.com&rnum=11
Older (early 80s Volvos) are affected too.
Brian
