Those caps are called servo covers. There is a snap ring holding those covers in place. To replace the seal you must remove the snap rings and pull the cover out. Be carefull becasue they may be under pressure and pop out unexpectedly and make a mess. replace the O-ring around the cover and reinstall.. add fluid to the transmission if any was lost. Macs Transmissions 281-394-4951 Macstransmissions@gmail.com
The better question is what is leaking transmission fluid?
All Aerostars have a small tube located above the center of the engine that the transmission dipstick is inserted in. Use a small funnel preferably with a flexible tube inserted into that tube to add fluid.
fluid is a lubricant of transmission
The output shaft seal has failed and transmission fluid is leaking by, and that would explain the transmission fluid appearing there.
Because your transmission has a seal that is leaking.
What his means is that the fluid is leaking out of a hole or crack in some part of the pipework through which the transmission fluid flows. Park it on a flat clean surface and see where the fluid is dripping out onto the ground. The hole will be somewhere above the drip.
transmission fluid
Transmission fluid.
If a transmission is leaking fluid, it is likely that a seal or gasket has failed. Replace the gaskets and seals and the leaking should stop.
Coolant should not be leaking from your transmission the only fluid in your transmission is transmission fluid. A faulty transmission seal can allow transmission fluid to leak out.
Rear main engine seal or front transmission seals
Why does a 93 dodge dynasty leak transmission fluid?