F 250 4WD Pickup V8-5.4L SOHC VIN L (1999)
Heater Core Case: Specifications
Plenum Top Screws ....................................................................................................................................................................... 1.5-2.5 N.m (13-22 Lb-In)
Plenum Assembly Top Screws ...................................................................................................................................................... 1.5-2.5 N.m (13-22 Lb-In)