Well beyond the wiring, engine and ABS they are basically the same truck, and the A1 and A1R electrical drawings are also available here in the TM sections… the core mechanical info for chassis, transmission and axles are pretty-much the same(A1R uses high pinion rear axles)…
The military shifted to a computer based maintenance system and the info in that system is not readily available i am not sure how much engine specific info is there beyond swapping it… the A0 manuals give full service and repair info for the trans and 3116 engine…
There are a few around here who can help with the computer and interface info to be able to talk to the various electronic systems via the data bus, but you will still need cat and allison software to talk to engine and trans. ABS and CTIS software is available from the manufacturers…
