Have you considered Motorcraft? I just replaced my original battery on my 98 about 5 months ago with the same for $59.95 from my Ford dealer. Funny thing is that my original was still working fine. Just thought it was about time.

Bruce O 98.5 SE Sport MTX, KKM, SVT exhaust 85 Z51 Vette stroker (just in case) Never forgetting the "Old Fart" Ray