Dodge D250 1990 Service Manual page 414

Exhaust System ami Intake Manifold
DODGE Turbo Diesel
Turbocharger - Rebuilding
Page 11-33
Mark the top surface of the oil slinger in line with the balance
mark.
Lubricate the oil slinger with engine oil and Install it into the
diffuser.
Install the o-ring into the diffuser.
Install the diffuser.
Caution: Align the balance marks on the shaft and the oil ^ \
slinger. i l