H190 Differential - 320 P/U Center Length
The alloy case center section used in the Datsun 320 pick-up measures 8 3/16" from the face of the drive flange to the mounting flange surface at the axle housing. This is 5/16" shorter than the later alloy H190 centers. I have used the 320 center with a drive shaft sized for the later H190 alloy center without any problems.