Crew Cab Seat Belt ID help???

[EricU]

As usual, my build on my 83 Crew Cab has spiraled out of control to the point that I now have an 89 (yes 89 along with the 83) Crew Cab that is getting a full PB Fab front and rear suspension, a new interior and well everything else.

My 89 did not come with most of the seat belts - typical story "blah blah Cleanest, best running, blah blah truck ever" - which translates to "Not safe, Crap quality, eff you" - anyways at least I'm not bitter.

I did find online at a wrecking yard (can we call them "Junk Yards" anymore without offending someone?) that had a red interior Crew Cab with the seat belts.

I called them up, gave them a CC number and had them shipped. The belts came in three shipments and I can't figure out what two of the belts that were sent to me are for.

Pictures of the donor truck interior: