Unlock hubs in 94 Cherokee

I just purchased a 2nd-hand 1994 Cherokee with the 5-speed manual,
part-time 4WD tranny. The previous owner told me that you needed to
back it up to unlock the hubs after having it in 4WD. I had to do this
for my 88 Trooper. But I haven't seen anything in the Jeep owner's
manual about backing up to unlock the hubs.

Do I need to back to unlock hubs, or not?

thanks,

Tom