5w30 or 10w30
Since this vehicle is a unibody design, the damaged floor would have to be cut out and replaced with new panels. This would require considerable disassembly, and skill in this type of body repair.
The gas engines use 10W30. The diesel engine uses 15W40.
Green.
Mopar ATF+3 or Mopar ATF+4
A 1991 Dodge Dakota will have either a V6 or a V8 engine.
Most likely for this type of van is a 3/8 Allen wrench.
It uses R134a
ATF +4
R-134A
R134a
Make sure that the fuse for the 1996 Caravan is the right size and type (slo-blo or fast-blo,) A meter will be needed to check for shorts to find the problem component.