OK here is the latest "PooP' according to Isuzu:
MBeach- your car is listed as a 2000 IronMan model, not a 1999.
XCROSS69- according to Isuzu your car is also listed as a 2000 Ironman.

I checked the VIN number of both vehicles against the Isuzu records using the "99" code and both came up INVALID, but when I popped in the "00" code both cars were listed.
Happy trails.........John