I scored more bucket seats

[doubleb's69]

I just picked up two pair of buckets and a decent console, and have questions. The white seats are out of a 1970 Jimmy but I think they are 71-72 style ( any help on if they are really 69-70 style would be great ) the others I believe are 73-76? style. The glove box door didn't have a spid, but had the how to use the 4 wheel drive sticker and lock out hub sticker in the place of the spid so it was no help. The brown seats are in pretty good shape. The drivers side white seat has some bottom foam issues, but the passenger side is great. Any help with identifying these would be awesome.

Also there is a pic of the flip bracket for the brown seats. Is this correct for 73 up or did someone put this on to use in an older truck?