The MW DVD video explains in step by step detail the set-up of a MW 9" center section. The step by step procedures are documented the exact way the units are assembled in the MW plant. The DVD video now includes how to use the T&D Pinion depth checker in assembling a stock or other 9" case that requires usage of the tool. It contains complete information on how to set the pinion depth and make adjustments for a acceptable running pattern. Run time 32 minutes.