Doing the math, and checking against what's on the van now, the first gen srt8 grand Cherokee wheel should fit the van nicely. The front wheels on the gc were 9" and the rears were 10", but you can get sets of replicas that are all 9" for a decent price. I'd be interested if the staggered set would work, 9s up front and 10s in back, but then you wouldn't be able to rotate the tires so not really worth it. But it should be a nice flush fit. I was hoping the new srt8 gc wheels would fit, but they would need spacers to clear the strut up front.