http://www.usmc.mil/marinelink/ind.nsf/publicationsThis page lists where you want to go . But , the marines shut down access after 9/11 to many sites like tech manuals . All I get is a blank page . You can try .
The gunny sargent at the local 8th tank HQ was nice enough to let me in to take pictures , he even took a few from top side, but was totally not interested in helping me out with TM material . Over worked with more important things I guess . But hey , probably the only one on the net with such detail pics . Sorry about the darkness , camera was not cooperating that day .
Oskosh maybe a good source , try contacting them .
Have fun
Joe