The sub assemblies and components that make up this Transmission include this Countershaft (nt:13), the most expensive part.
With a quantity of three pieces, the Bolt(6x13) is the most used part in the TRANSMISSION diagram.
This schematic depicts all components used in the Dr800s 1990 (l) (2 4 15 E16 E17 E18 E21 E22 E24 E25 E34 E39 E53 Transmission partslist.