Tailgate Trunnion Issue

[nicholas.merenda]

Hello everyone. I joined this forum because I myself have a square body, but also because I'm having an issue that seemed appropriate to post here. I own a 1984 Chevrolet CUCV M1028 (aka K30). When I got the truck it did not have a tailgate. I know there are differences in tailgates during 73-91 so instead of trying finding one that works I decided to purchase a mil surp tailgate from another CUCV. Now the gov only ordered CUCVs from '84-'86. How could I go wrong with another CUCV gate right? Well I went to go slide it on today, only to notice the trunnions on the bed are the same exact size as the hinges on the gate. I even measured to be sure and they all share a 1.5 inch diameter. My question is was there ever a difference in trunnion sizes? The hinges on the gate appear to be original but I can not tell with the trunnions. I can only assume that a previous owner swapped trunnions to install a different gate. Any light shed on this situation is much appreciated.

Video I posted of the gate: https://www.facebook.com/photo.php?v=10152397178389404&set=o.79151299456&type=2&theater

 - Nicholas

[bake74]

     First off welcome to the site.  Here is a link to  tailgate identification in our tech section that might help some.
     I could not find the thread that I was looking for that talked about the trunnions, but I am sure someone will chime in.

[blazing816]

Mine were jack up on my truck (dented, bent, rusted) so I just bought a new set, both for tailgate and truck side. They work great, made leave out all the guessing.

[nicholas.merenda]

I'll probably just do that and save myself the headache. Just really weird to me.

[VileZambonie]

You need the 81-87 ones that bolt onto the bed. The ones on the gate are correct for the year.