Call Quigley up and give them your vin, they will tell you the exact bilstein part number to get for the front and back. I dont recommend buying the shocks from Quigley though, as I was able to find a much better deal on them online.
You will love the ride the new Bilsteins will give. The gain is worth 5x what it costs for the shocks. The vans ride so bad with the stock shocks, its like a completely different van after.
I'm curious if you recall who you spoke to at Quigley.
It was last march, I do not remember her name. After leaving my VIN #, they called me back and gave me part #'s. I asked if they had them in stock and she looked the price up and said that it was kinda high for the fronts. I do not know if it was because I have an 09? But I was able to find a really good deal on them online, and I'm very happy with them. I really wish I just ordered that option from quigley when I bought the van new.
Apprx what did you pay for the 4 shocks?