Jeep Cherokee 1993 4.0 Limited gearbox

Good to all colleagues and friends. I have a problem with the change of the jeep. The change is automatic and when you want it is not put in P mode. They tell me that the type of clutch you carry is for oil and I think that is. But they also tell me that within the case there is a filter that reveals to be in the clutch oil pressure circuit and that if Atora does not work well, the cluting. I do not find where you can be said particle filter or any manual to tell me. Let's see if we can all solve the problem. Greetings colleagues and thanks in advance.

Hello MLINAIR.
Your box must be a four -speed Ainsi, the filter you are looking for is
inside the box, if you remove the inspection cover is the first thing you see. It seems to me that your problem can be in the change selector or the butterfly valve, everything is inside the box covered by the filter. In the Chrysler manual section you find the manual. Luck.
Miguel