Does either the 92 van, or the 92 truck have an air bag on the steering wheel? Everything in the column changed with the introduction of the air bags, I know my 93 Dakota had one, but that may have been the 1st year for the air bags.
If neither column has an air bag, the cruise & variable wiper switches are just the different stalk on the column and should be interchangeable between the two 92s. The wiring is probably already present, so that should be a plug and play as far as the column goes. You will need the variable wiper motor (most likely different between the van and the truck), the timer for the intermittent, and the plug in box for the variable wipers (those wires may be a lot shorter on a van then they are on a truck). You will also need the cruise control stuff that matches the switch and the chassis, Dodge used 2 systems and the two are not compatible, but I don't remember when the change over between the two cruise setups took place. A lot of the van stuff was the last of the vehicles changed over when stuff was updated, could be a year later (or more) on updates then other vehicles across the Mopar lineup.
