Just got the answer from Adams. Its 1.8 lbs.
The International 9400i was produced form the years 2000 to present in the United States. The freon capacity of a 2001 International is two to three pounds.
The oil capacity for International 4300 dt466 from 1994 to current hold 30 quarts with filter. Those made before 1994 have smaller engines with the capacity to hold less oil.
2.25 lbs 134a
day cab 2lbs sleeper no more than 3lbs
It`s on the tag under the hood.
Oriffice tube system, 30 oz.
freon capacity on 1979 corvette
Just fill the the rear differential will fuild comes out and your done.