We have four gears, 1,2,3,4, but 3 and 4 also have the torque converter lock-up, so it is almost like 6 gears.
I checked today, I get up to about 78 MPH on the 2-3 shift and drop from 6400 RPM to about 4300 RPM (Hard to watch when driving fast). If you are dropping down to 2700 when you are going 2-3, you can't be in third. You may have a tranny problem. Let us know what happens with the o/d off light on.
The Ford Friction Modifier additive is only for the manual trannies (They use Auto Tranny Fluid though). Don't use it in the ATX....
