Tires: Vehicle Placard, gm pickups, tire guides

Question
 The vehicle placard is missing from my 1990 GMC c2500 Diesel pickup, we ran the VIN at the local dealership and determined that it is rated at 7200 lbs, but we cant find out how to order a replacement placard, TIA

 Rod     va3rp@mycybernet.net

Answer
Rod,

In most cases there are many versions of GM pickups and it's hard for me to sort out which model you have and what the original tire size was - BUT

The GVW of 7200# provided just enough information.  Tire Guides says the truck originally came with LT225/75R16 LR D's inflated to 45 psi front and 65 psi rear.