all the bars are the same length and will interchange..hq thru to wb statesman..brackets are different..
hq wagon is smooth,hq sedan has tailights on it,hj sedan and wagon have indentations to take the rubber strip and if it has the strip it also has holes..wb stataesman looks exactly like the hj to z bars but takes a wider strip and 1 hole that attaches the rubber is square...BUT THEY ALL INTERCHANGE...
if you want them to look right, as in tuck in to the body you will need to narrow the bar by up to 2 inches..