Express 3500 V8-6.0L VIN U (2004)
22. If it is a new shaft, or if the cup plug was removed, install the cup plug in the front output shaft using a suitable driver. Install the cup plug 1 mm
(0.039 inch) from flush with the end of the shaft.
Important: Ensure to align the marks of the drive chain and sprockets, if using the chain and sprockets again.
23. Install the drive chain on the drive sprocket.
^
The blue link on the chain faces up.
^
Align the chain, if using it again, with the alignment marks made during disassembly.
24. Install the driven sprocket and the chain.
