rewiring some of my dash and getting rid of what i dont need in the meantime. found this little black box but no part number or anything on it... right behind the abs module. any ideas?

 

Thats the US Tracking device to find your location at any time they want to find you.

Naw just kidding It almost looks like the wiper control module or wiper govener. It has been a long time since ive worked on these year pickups so my memory is vague.

 

Are there/were there any wires or terminals on it?

 

Ya there are 2 connectors, all side by side pins, one grey and one white

 

right behind the abs module located here in the middle of the dash

located here with the abs module removed

 

I too believe it to be for the wipers.