V 3500 P/U 4WD V8-454 7.4L VIN W 4-bbl (1988)
4.
Remove and discard the indicator ring (factory use only) from the male fitting.
5.
Install a NEW retainer fitting into the female fitting.
6.
Connect the fittings together until a snap is heard and/or felt signifying the retainer tabs have engaged the raised feature of the male fitting.