The only manufacturer that I know of that sells an AWD from the factory is IH, the others are all conversions most likely done by Marmon-Herrington. This maybe what you saw but I could be wrong.

"Come get your wife"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Front and rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.