Slant 6 Water Pump Rebuild

Found your parts and they are even in your state AMS Obsolete Home Page

The impeller if you need it is 7-45-31 locator number P/N is 2205-549

The kit for the pump is 7-42-4 locator number P/N is 2298-907 the parts book says it doesn't include the seal.

Gasket 7-44-4 P/N 1947-523

Gasket 7-44-3 P/N 1947-521

Seal 7-46-1 P/N 2120-955

AMS shows they have all these numbers. These numbers are from a 1963 parts catalog.