I need some help here. I have a 14 bolt rear in my 1980 3/4 ton long box. The 14 bolt has u-bolts on the yoke. I am trying to find replacements for these. Are they 1350 series? 1410 series? I have been told that the 14 bolt only used straps! This is the fourth truck I have ownedthat has14 bolt AND u-bolt type yokes. In other words, I have not owned any 14 bolts with the strap type yokes Did they make both types ofyokes? Thanks for any help.