This shop manual covers the proper disassembly, inspection, rework, assembly, and installation of the 4396447 turbocharger found on the Allis Chalmers 670I engines Written by an industry professional, this book contains full-color photos, diagrams, torque specs, and best practices. Repairing your vehicle's turbocharger is easy and cost effective-if you know how This shop manual covers Garrett Honeywell T04B90 409080-0006, 409080-9006, 409080-5006, 409080-6 Turbochargers