Off-Road trailer suspension

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Joined
Jan 29, 2008
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Location
Toronto, ON
I was about to order shocks for my build, but got confused by some opinions. I'm building the trailer from scratch using some boxed frame pieces I found. As of suspension I decided to go with simple and easy solution by using YJ springs. I mounted the spring and axle and checked the sizing for the shocks. I need ~19" extended with ~6-7" of travel. I found several options in Rancho line-up.
I was leaning towards Rancho 9000 valve adjustable, but my supplier recommends 5000 series which is not valve adjustable. His point is that I'm not riding on it to feel the difference and it going to bounce anyway, so why spend x2 on adjustable one. 5000 does cost ~1/2 of 9000. He was honest for me for a long time and also the fact that he will make less money if I go with 5000, makes me think that he got some point. But I'm just not convinced yet on 5000. What do you guys think of this? Should I go as originally planned with 9000s or save myself $120 on 5000s?
 
As of my rough calculations trailer would weight approx. 700-800lbs. Potential load may vary from 200lbs of just tnt, chairs and other camping gear for a day or two out to fully loaded 1000lbs of load for long-term expeditions. I thoght that the adjustment would make it easier to tow in this case. Am I right? Do I miss anything? I also thought that it should help to transport food and fridges inside comfy trailer, or wouldn't it matter what shock I have for this reason?
 

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