While cleaning up layers of grease, I found this ID tag on the main housing of my T90 gearbox:

I was wondering if any former military could ID the unit.
I thought SAC was Strategic Air Command? "Dac"h might be a short for a base in Germany?
Since my CJ3 is former Belgian army, it is odd to find this type of ID plate since these abbrevations are not typical Belgian army.
Then again, the transferbox may have been replaced much later during a former restoration.
Thx
Guy