Long story short, I picked up a 1985 Nissan 720 King Cab 5 speed 2wd for $1,500, needs a little work, not much, but my biggest complaint is that the rear springs are sacked out, not surprising considering how few springs Nissan installed from the factory (My '93 F150 has the opposite problem, every time I look at that spring pack I think "But, why?"). I don't want to pay $200+ for new springs, so I was researching to see if a more common vehicle like a D21 Hardbody would fit, and so far as I can tell from measurements, they should fit.
So my question is simple, without speculating and only known facts, which vehicles could I harvest springs from to upgrade my little 720? I need it to handle a decent amount of weight, say a riding lawn mower. The rich people love to throw away nice lawn and garden equipment around where I live, makes for a fun hobby fixing it and selling it. Had a guy give me a dozen weedeaters, a push mower, and a riding mower in 2017 when he saw me picking up a couple weedeaters he threw out, thought he was coming out to chastise me for picking up junk off a public street.
Anyway, let me know what y'all know, please and thanks. I can't find information on this, tried searching the forum, much like Google, it seems to get confused when I search for a Nissan 720.