Hello,
we had the same discussion in a german Forum 1 First of all see
http://www.wwiidaybyday.com/
go to KSTN and to Heeresflakartillerie .
The KstN named the (Kfz.415) or Lkw. 4,5t, open ; + (Sd.Ah.52)
In an handbook of a fomer AA Gunner (someone own one) the KFZ 74 was named as tow vehicle =
Flakmesstruppkraftwagen (Kfz. 74) is a Krupp L3H63
h**p://www.kfzderwehrmacht.de/SdAh_52_mit_KdoGer40.jpg
h**p://www.kfzderwehrmacht.de/Krupp_L_3_H_63_der_WL.jpg
Bye
jörg