Sorry but without the year and engine size, I cannot answer your question. But, any Auto Parts store that sells you the plugs can provide the answer.
The spark plug gap is .050 inch.
.050 inch
.050 inch
.050 inch
.050 inch
The spark plug gap needed is for a 4cyl dodge caravan and not a grand caravan if it makes any difference. Thanks The answer to your question is printed in the owner's manual and is listed on a placard under the hood or on the radiator frame.
The gap is .050
0.035 inches.
The plug gap spec is .050 inch.
.050 inch.050 inch
My Chilton's says 48 to 53 thousandths dpf If it is a Grand Caravan 3.8L V6, then the gap is .050
spark plug gap on your van is .048-.053