1999 Ford Econoline Submodel: XL; Engine: 5.4L V8 SOHC; EngineVIN: L; Universal; with Factory Installed A/C; Position: Rear;. 1999 Ford Econoline Submodel: XLT; Engine: 5.4L V8 SOHC; EngineVIN: L; Universal; with Factory Installed A/C; Position: Rear;.