My suspension seats have tabs for bolting horizontally to metal such as angle iron along the sides.
If you cut the rearmost tabs so they will just slide back and hook on bolts welded to your angle iron mounts, then you can use only 2 bolts or pins to hold the front tabs to angle iron mount.
This isn't very clear, but I can remove the seat by just pulling the front 2 pins and the seat slides right out.
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