Monroe coilover helper shocks for van or truck; thumbs up!
One other thing to add for now as it is something I didn't see anyone else here mentioning. I do know that Monroe shocks are no Bilstein's but Monroe has an offering that others don't. I have used them on a couple different vehicles and have no complaints. The load leveler shock is a bolt on shock with a built in coilover to help support a little extra weight. With the addition of the coilover it does provide a bit of a lift on it's own and will help if your stock leafs are sagging a bit....
I don't have a van, unless you count my'09 HHR Panel as one, but I've used the Monroe coilovers on my last three trucks. I was sorta the informal logistics guy for my drag racing club, hauling two generators, two grades of racing gas, regular gas, multiple jacks and jackstands, tools, supplies, and a minibike to every race, while towing my Chevelle on a heavy implement trailer-turned-car hauling trailer. My '69 C10 and the '75 C-10 had good power, but the rear springs were sagging, before I added the Monroes (and also add-a-leafs on the '75, and rear swaybars on both). That did the trick, but when my (then) faithful '86 S-10 extended cab daily driver (for 18 years) got T-boned, I replaced it with a '04 Silverado 2500HD WT, that had 30k miles on it. It had been a parts hauler for a Hummer dealership. I started using it to haul to races, and sold off the other two trucks. After four years, and increasingly larger loads being hauled, I replaced the Gas-Magnums on the rear with the Monroe coilovers, and that raised the rear up an inch, and made the heavy loads insignificant (a beefed 4L80E and 4.10 gears helped a little, too). I sorta miss hauling those heavy loads, now, since I only tow my little squareback TD (< 2000 lbs) with 1/2 ton or so in the bed (supplemental gear), and it never even knows the trailer is there. I recommend the Monroe coilover helper shocks heartily!:26_7_2: