F 150 2WD Pickup V8-5.4L SOHC VIN 3 (1999)
Heater Core: Specifications
Heater Core Bracket Screws ......................................................................................................................................................... 1.5-2.5 N.m (13-22 Lb-In)
Heater Core Outlet Bracket Screws ............................................................................................................................................... 1.5-2.5 N.m (13-22 Lb-In)