I get a skip under load when pulling with the truck. It does it mostly when stepping down on it with the camper. I get a slight kick everyso often under highway speed but mostly under load - not all the time just every so often - any ideas - replaced the cap and rotor, might have helped a little

 

Is it an auto trans?

 

Yes it is an automatic - 179K miles
Florida truck so still in good shape
want to get to the bottom of this