My truck has a self adjusting clutch in it and im fixing to replace it. My question is can i put a non self adjusting clutch in it or do i have to put the OE style back in?

I dont have the right tools to be able to "reset" the self adjusters on the pressure plate or a press that would assist in doing so. I dont want to put the non self adjusting clutch in just to have to take it back out because of problems i only want to take the tranny out 1 time and be done with it.

 

Non-self adjusting pressure plate will work fine, you will notice when clutch disc is new that the pedal will have to be all the way to the floor before it disengages.
So you really have to make sure system is air free, and slave and master are in good shape.
Then as disc wears down it will disengage higher and higher, so like any older clutch setup, except these usually had external slaves that could be adjusted as clutch disc wore down.

Self adjusting pressure plate has a spring loaded plate that moves closer to flywheel as disc wears down, so pedal disengage stays close to 3/4 pedal

 

The Ranger has a self adjusting slave so I don't think that has anything to do with the self adjusting pressure plate and the point at which the clutch disengages. I admit I don't know exactly how the self adjusting pressure plate works and the effects of it. However, I have heard an explanation from a source that seemed knowledgeable about it. It was explained that the self adjusting pressure plate deals mostly with the change in pedal force required to disengage as the clutch wears over time.

Whatever the function of the self adjusting pressure plate, installing one without this feature will work fine but you will have to deal with the minor issue the self adjusting pressure plate fixes.