1998.5 12valve. Truck is very rough body wise. I figure whoever buys it, will part it out for their project. Or drop a cleaner cab on it. The engine and drivetrain are perfect. I have never had a problem. The p-pump has a cam upgrade with delivery valves and number 5 fuel plate. It has AFE intake and re-usable element bought last june. The exhaust is MBRP 4" aluminized turbo back. Truck sounds great. I had the KDP pinned in 08' when I had the fuel pump built. The trans has been rebuilt with ARI valve body upgrade and billet torque convertor, trackbar delete kit. I liked the power where it was so I didnt go further. The truck has 230K on the ticker. It sits now. BUt I hit the remote start twice a week to keep the juices flowing. It tows anything and could be pressed back into service if the rusted body is not an issue. I was going to do a ramcharger conversion. But I succumbed to my baby daughter and bought a 12' G56 CTD. I can be reached at 813-360-3626, Florida.