Front shaft from front axle to transfer box

I'd seen severals pictures to show a mounting about this .
Extremits are not on the same axle .90 degree .
Is it a standart or a special mounting ?
Regards .
2020; 25 JAHRE LT-Freunde IG.Die IG für Fans und Freunde des LT der ersten Generation.
http://www.lt-freunde.de/forum/