The gap should be 0.040".
You need to remove the upper intake manifold to access.
A 1998 Dodge Ram does not have EGR.
Cylinder #1 is on the far passenger side. The posts on the coil are numbered.
in what order are the spark plug wires on the distributor cap on a 1998 dodge Dakota 6 cylinder
Screwed into the heads.
"How do you move the idle tensioner for a 1998 3 litre dodge?"
List your engine size next time. http://autorepair.about.com/library/firing_orders/bl-dodge-firing-98.htm
firing order for the 1998 2.5 litre is 22.214.171.124 for the Dodge Dakota.