Bigger problem is SVT Focus 6 speed has 2 underdrive ratios instaed of one...basically wiil help highway fuel economy (which SVTF needs) but nothing for power without some ratio changes. IMO MTX-75 ratios well spaced for the 2.5L(unless you really care about 0-60 times where its close ratios require another shift)..Why they put the taller final drive in zetec (fuel economy I guess) is unknown but unfortunate..