All I can say is that I seem to recall this procedure back in the early 70's as a flying spanner on 747 Classics - or perhaps DC8's. I thought it was a safety precaution related to the weight of the bogie gear, so perhaps N/A on 737's and such like.
Might have been something back in the day... Not on the 747 classic though and certainly not on the more recent Boeing models.
DC 8 no clue, but you might be right.