Just seen this post on the M151 forum, I thought there would be a few people here who'd enjoy it.
Chris
MILITARY POLICE SUPPORT IN RIVER CROSSINGS
http://www.archive.org/details/gov.archives.arc.36923
M151 ENGINE FOUR CYLINDER OHV PART I (1962)
http://www.archive.org/details/gov.dod.dimoc.29940
HYDRAULIC BRAKES: PRINCIPLES OF OPERATION, PART 1 (DRUM BRAKES) (1983)
http://www.archive.org/details/gov.dod.dimoc.700293
ACTIVITIES OF THE 3/17 AIR CAVALRY (1970)
http://www.archive.org/details/gov.archives.arc.33957
PRESIDENT NIXON'S VISIT, JOHNSTON ISLAND, July 23-24, 1969
http://www.archive.org/details/gov.archives.arc.71184
USARV DRUG ABUSE PROGRAM - "PROJECT ON BOARD" (1971)
http://www.archive.org/details/gov.archives.arc.34468
MOBILITY IN THE TROPICS (1964) - (You''ll love the M151 Swamp Buggy in this one!)
http://www.archive.org/details/gov.dod.dimoc.26065
STAFF FILM REPORT 66-31A (1966) (Searching by "Staff Film Report" provides great results for Vietnam. Likewise "Combat Bulletin" searches for WWII)
http://www.archive.org/details/gov.dod.dimoc.26984