How do you reduce steering wander in a 1997 Dodge 3500 2 wheel drive van when it's been a problem since new now 32000 miles with all front end parts like new with alignment and tire pressures in spec?

Have you checked steering box for wear? Also, a longshot but you might have a slightly bent frame. It does happen. In context, the 3500(s) had tall tires and radically different road feel than a car with 13, 14 or 15 inch wheels and tended to feel like they were wandering when in fact they were not. I had two (a '91 and an '02) and they both tended to feel mushy on the road-especially if they were loaded and in the right lane of an Interstate used by heavy semi traffic that wore slight channels in the road. If you feel unsafe have all front end parts rechecked including sway bar and stabilizer arms and also check for free play on steering box and loose or worn steering shaft. If these check out live with it. It's a Dodge, not a Ferrari. Mark