A.A.C.V.M.

wesk escribió:Hello Bruce.

There are several manuals available for the M100. They are the first service manual TM 9-871 dated 27 JUL 1951, the first ORD 9 SNL G-747 dated 7 FEB 1952 an ORD7/8 dated JUL 1956 and finally the TM 9-2330-201-14 Dated 26 APR 1972 which was a modern service and parts in one manual.

All the M100's came with the hole in the frame for the plug receptacle and the two brackets on the front panel for the storage box. As Hal mentioned above sometime around 1953/54 they dropped the cable with two plugs and the box. We have seen dozens of early trailers without the box or plug receptacle that should have came with them originally but it stands to reason the Army would eventually only stock the later cable and trailer harness and that at depot rebuilds or during harness replacements the trailer would be upgraded to the newer setup.

The manufacturers as far as is known today didn't use any serial markings on the frames. During some periods the serial numbers were often used as the registration number painted on the tub. During rebuilds sometimes that number would be stamped on the draw bar. There are a ton of variables and neither Dunbar Kappel or Strict retained any known records of production. There were two more builders as well in later years. With the M416 introduced in 1959 to fit the M151 series I doubt any new M100 production continued much further than the 60's.