[amc49]

I should tell you that I have NOT done a 4F27E yet, however I have done several others and that's what works. Here's the point. It doesn't matter where you measure the clearance as long as you are sure that the measuring point is where you will be able to get all the slack in the clutch stack to one side so that an accurate measure can be made. Usually the snap ring is wide enough so that you can do it between snap ring and top clutch plate. Sometimes though, trans design may prevent that. Maybe snap ring VERY narrow, or retention area is made in such a way that it won't work that way. Earlier CD4E for instance has to be measured somewhat differently in the low/reverse clutch because of the way it's built. Looking at my Focus trans manual though, it appears that I could measure in the normal fashion mentioned previously, as the snap ring shown appears to be normal width.