A rebuilt truck from the Gov doesn't mean everything was rebuilt, the short story is if a part was out of spec's it was replaced sometime with new some with rebuilt usually most of the rubber good are replaced with new and a paint job. Some also have a rectangular plate to to the right of center on the dash
stating where and and the mileage on the truck at rebuild and some of the ones done in Ks at RSMS have it on the drivers door jam.
A lot of the triangular tags on door jam are just for a MWO, Modification Work Order, and depending on the numbers on the tag reflect what was done which could be ABS was added on an early truck or gun ring ect. 939 series A2's has a turbo an any of 939 series can have the 14" tire applied but the A1 and A2 had them from day one.
Found this on an older post by
wsucougarx
I contacted Red River Army Depot about their "rebuild" program with the M939 series trucks. They apparently DO NOT rebuild the trucks there. They have a list of replaceable that they concentrate on like coolant hoses, belts, etc. They apparently do repaint the engines flat black but do not replace the engine unless there is something really wrong with it. So when you see a RRAD dataplate on the dash, it does NOT mean your truck went through a depot rebuild. They sent me an unclassified manifest of what they actually do. From the looks of it, it is mostly MWO's. Makes me wonder why they don't take care of these MWO's while at the unit or division level. Among the high priority items are: hardtops, 3 color CARC, replacing batteries (presently Hawkers are the prescribed batteries)