Yes they do.
When standing in front of the van it is on the left hand side on the engine side of the radiator it's on the bottom. It plastic.
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It is that drain plug looking thing at the bottom left of the radiator.
If it is a plug it unscrews counterclockwiseIf it is a petcock it opens clockwise Remove the lower radiator hose
Lower drivers side of the radiator.
Should be on the bottom or rear of the radiator
It is located on the condenser in front of the radiator. Easy to access if you remove the grill and disconnect the high pressure line.
The plug gap is .60
get under the truck and look up. should be accesable from there.
At the bottom of the radiator on the passangers side.