Steve - cheers - I think the complication is that there are two different nut types on the alloys - conical and shank. I think the 97 refers to the conical version, 76 to the shank ones. I think!?!
FWIW the manual that came with the Cruiser also states 76lb/ft, but my trucks a 96....
Who knew something so simple could be this complicated!?!