WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Do not fully depress the clutch spring compressor or damage to the spring retainer may occur.
Fig 1: Installing Forward Clutch Piston Spring Retaining Ring
Courtesy of FORD MOTOR CO.
Using the special tool, install the forward clutch piston spring retaining ring.