Heavy Duty Spring - Polaris ATV Forum
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post #1 of 22 (permalink) Old 04-24-2013, 06:42 AM Thread Starter
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Heavy Duty Spring

Can someone help answer 2 questions for me regarding heavy duty springs for my Polaris sportsman 500, year 2000?

I have a 40 gallon tank that I mounted off the far back of my quad. I fabbed a frame for it so I could still take my seat off. When the tank is full it is about 350 lbs on the back of the unit. Right now I have 2 factory springs on the back and they are bottomed out when in use. Here are my 2 questions:

1. Is there a spring rated heavier than the EPI spring?

2. Can I use a Polaris ranger spring which is rated at 250 lbs per inch. Will this fit on the Polaris sportsman shock?

Thanks,
Erik
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post #2 of 22 (permalink) Old 04-24-2013, 07:31 AM
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I believe the High lifters have a higher spring rate, but if i remember correctly is was not very much.. maybe 5 lbs. I put HD's on mine, went with the EPI's because they came in black. Not sure if the ranger spring will fit. That’s a lot of weight sitting way back there.
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post #3 of 22 (permalink) Old 04-24-2013, 08:03 AM Thread Starter
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Mike B,
Thanks for trying to answer my question. I'm hoping someone knows if a ranger spring will fit on my sportsman shock. I will settle for high lift or EPI spring and not use so much water but would prefer the strongest spring possible since I have so much weight back there. I'm even considering fabbing some type of 5th wheel on the back for support but have no idea where to start.

Erik
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post #4 of 22 (permalink) Old 04-24-2013, 11:42 AM
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Maybe fab something up like this.
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post #5 of 22 (permalink) Old 04-24-2013, 11:43 AM
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pictures.
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post #6 of 22 (permalink) Old 04-24-2013, 11:53 AM
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The new HD springs should help a lot. Those are pretty old springs, if they are from 2000. I have a 2008, when I first got (used) it, it would bottom out with just me on it hitting some bumps. Although I'm 6'3" 290lbs. With the new spring it would compress maybe an inch awhile sitting on it. They have loosened up a little more over the last year. They compress about 2 inches when I'm just sitting on it now. If you swap out the rears rent a spring compressor to get them apart, makes life a lot easier. You may want to do the fronts right away also.
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post #7 of 22 (permalink) Old 04-24-2013, 12:04 PM Thread Starter
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Mike,
Big help right there with that pic of the wheel.

Thank you,
Erik
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post #8 of 22 (permalink) Old 04-24-2013, 12:15 PM
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I like the dual wheel one. Wish I could see how they let it swivel.
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post #9 of 22 (permalink) Old 04-24-2013, 03:29 PM
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Just put the tank on a small trailer..

2004 Sportsman 700 EFI
27/11/12 Mega Mayhems
Custom winch mounts frt & rear
QSC clutch kit
Epi hd springs
HSP exhaust
Equus temp guage
switchless overide
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post #10 of 22 (permalink) Old 04-24-2013, 04:59 PM
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I'm picturing it hanging out back behind the rack? If so you are compounding the problem and springs aren't going to fix it no matter what you do. I like the little trailer idea.
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