F 450 2WD Super Duty V8-6.0L DSL Turbo VIN P (2006)
6. Position the evaporator core housing support bracket and install, but do not tighten, the bolts.
7. Tighten the upper retaining nuts to 4 Nm (35 lb-in).
8. Tighten the lower retaining nuts to 4 Nm (35 lb-in).
9. Tighten the evaporator core housing support bracket bolts to 11 Nm (8 lb-ft).