I'm the 2nd owner of this truck. I bought it with 100,000 Miles. I completed a through upgrade to all the Suspension and a new motor and a "Mojave Green" trans. The motor is a 10 over Roller 350. Fuel Injection. It has an RV cam and it runs perfect. The truck is set up for towing and has a 1 ton suspension. It has all options available in 1990. They all work well.