While reading the 'Mercedes Truck Front Axle Systems'
I was confused as to what a 'through-drive axle' means. This has led to some exhausting research, and the only related thing I've been able to could find is this:
Use the lock position only when you approach conditions where one or both wheels of an axle may slip. The valve locks the differential and causes it to act as a “through drive,” transmitting power equally to both axles.
Speaking of which, what is an 'interaxle differential'? Is it a physical part? If not, do 'interaxle differential' and 'interaxle differential lock' mean the same thing?
Kindly note I know absolutely nothing about trucks (and close to nothing about vehicles and their mechanics altogether). Simpleton language would be more than welcome :)