You must remove the coolant recovery reservoir before you start to replace the engine coolant fan lower shroud for all 4.3l, 4.8l, 5.3l, 6.0l, 6.2l, 7.0l engines. First uninstall the air cleaner assembly by using the correct replacement procedure according to each engine type. Fan Shroud bolts (1,3,4) must come off first before you can take out the Fan Shroud (2,5). Place the Fan Shroud (2,5) first when performing the installation steps. The installation of the Fan Shroud bolts (1,3,4) should be completed at a torque of 6 nm (53 lb in). Reinstalling occurs by following the correct replacement procedures of the engine for both the air cleaner assembly and the coolant recovery reservoir.