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Guest Message by DevFuse

* * * * - 1 votes

NV 4x4 front suspension - Owner Input needed

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24 replies to this topic

#21 radin2son



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Posted 13 October 2018 - 10:08 AM

Mark and Mahu, Your views still come down to S_A contacting Quigley, Advanced and Nissan for supporting or conflicting data. S_A hasn’t done this so far.


quigley4x4.com has an excellent, easy to use site specific to Nissans. Go to Nissan Technical center. Weight chart, based on model year 2015, direct you to the engineering department if there are any questions.


If you google problems or issues with Quigley conversions, most posts are old and relevant to Ford E-series. Some issues involved using stock parts. One 2007 post indicated Sportsmobile West Quigley conversions were better, better turning diameter and more custom parts etc. 


I didn't check Advanced.

Edited by radin2son, 13 October 2018 - 02:15 PM.



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Posted 17 October 2018 - 07:29 PM

  All that weight is on the tires.  The tires will take it.


How much of the weight is NOT on the suspension?

#23 Mark Rogers

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Posted 18 October 2018 - 01:19 PM

  All that weight is on the tires.  The tires will take it.



The tires definitely will take it, especially if you add a bit more air to them.  But, there must be a reason for the GAWR.  Will the other front suspension components handle the load properly?  Will it adversely affect emergency steering or braking?  Will the springs need upgrading to allow a full range of motion with the extra load?  Those sorts of questions need more information to answer.

#24 cray54


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Posted 08 November 2018 - 11:28 AM

  All that weight is on the tires.  The tires will take it.


How much of the weight is NOT on the suspension?

The only components that are changed / added that are not supported by the suspension are the hubs and the cv-shafts. The hubs should be effectively the same, and you can consider approximately half of the cv shaft weight as un-sprung. I picture this being around 25 lbs of un-sprung weight in the front... so the majority of the weight added is sprung weight.

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#25 GrooveChampion


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Posted 15 December 2018 - 09:28 AM

I own a 4x4 conversion from Advanced. I haven’t even thought about this. I probably should have since I am considerably bigger than the average driver (6’6” and 340 lbs) and a mechanical engineer. Oh well... I do fluid mechanics not structural engineering.

I haven’t noticed any problems with the front suspension in the year that I have owned my rig and I have driven on a few Jeep trails. Although the back is typically loaded with camping gear when I take it off road.

By the way, I have 34” tires (285/75/17 Toyo AT II) on my van with the stock rims and a 2” lift. No rubbing.
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