Up for Buy-It-Now is a new old stock right steering knuckle arm, Mopar part number 595610.  This item was obtained from an old service garage and is not a newly remanufactured part.  According to my Mopar Manuals, this is used on the following models and years:

1940 Dodge Truck...Models VM35, VM37,  1 1/2 Ton
1936 Dodge Truck...Models LH45, LH46, LH47, LH48, 2 Ton
1937 Dodge Truck...Models MH45, MH46, MH47, MH48, 2 Ton
1938 Dodge Truck....Models RH45, RH46, RH47, RH48, 2 Ton
1939 Dodge Truck....Models TH45, TH46, TH47, TH48, TH49, 2 Ton
1940 Dodge Truck...Models VH45, VH46, VH47, VH48, VH49
1940 Dodge Truck....Models VS45, VS47, VS48, 2 Ton

  The arm is approx. 10 1/4" long and is in brand new, never used condition.  It is coated in heavy cosmoline and is free of any rust or damage.  Cast on the piece is 595610.  
  Please feel free to E-mail me questions.  International bidders are always welcome.  Thanks for looking !