The SJ410 is more or less a Samurai. The SJ410/SJ413 is what most of the world got, the Samurai is what the US got in 86 and in Europe starting in the later 80's. In the US Market, the Samurai has wider axles/stance, larger engine, roll bar, etc.
Judging from the photos, it appears that your front spring mounts are offset from the frame. On a SJ410 they are directly under the frame. However, the rear spring mount looks a little funny, like it is inset. Hard to tell. I also believe that the SJ410 came with drums all around, but again, somebody might have swapped those over from a Samurai. The axles looks like a Samurai axle, but they could be the narrow SJ413.
Again, I am assuming that you are from the US or Canada. No location info in your profile.
In other certain European markets, the SJ410, SJ413, and Samurai were all sold with many interchangable parts from the factory. I came across all kinds of "strange" powertrain combos when I lived in Germany from 99-2003.