Another update to save someones back from playing with the leafpack.
Removed #3 and installed back #5.
Even though theoretically #5 is stiffer than longer #3 it somehow made the ride much better. I have tried all the possible configuration.
This is the best one for light to medium load and is...
Got info back from ironman. They recommend removing #3 first and #5 next.
Also here is the RELATIVE spring rate of each leaf based on approx. length. based on a online calculator.
Leaf #7 is 4 times stiffer than Leaf #3.
Edit: Found out torqueing the shackles to factory spec was a big mistake. I loosened the bolts and just finger tightened. My shackles have nylock nut. It gets tightened just enough automatically when I drive.
It rides much better now. This discovery made my earlier springs setup tests invalid...
No to get it right first time I removed 3 and 5 and end up in this rabbit hole.
Update: Reinstalled as recommended by others and removed just #5.
Now there is 1 inch lift from the leaf and ride is still stiff but feels good and supported than 2 leaves removed.
So my conclusion from the test...
Any idea what capacity will the leaf pack becomes after removing each leaf.
original is +660, What is the capacity after removing leaf 5?
I removed 3 and 5, There was 0.5 lift and the ride was not that great.
So I tried removing 5 and 7. Now there is no lift at all from the leaf unloaded ride...
Does removing the overload has any affect compression and rebound.
The Ironman OL is very thick and heavy. I feel like removing it someway lighten the leaf pack. Does it cause wheel hop. Any expert advice?
Also considering the stock leaf pack was 3+1. Does it make even 5+1 way stiffer
I removed #3 #5 and overload. I kind of have unstable pickup truck ride now. I tried loading the cargo with about 100 or more pounds which didn't helped much
I am thinking about putting back the longest #3 and removing #5 and #7.
I read from other forums un general to keep longer leaves and...
Here is my initial impression with springs with 3, 5 and overload removed.
Using 1 inch lift shackle.
Front is 36 inch from ground with ironman coil spring.
Rear was 38 just after installation
After driving for 2 days with one of the leafpack in the cargo. dropped to 37 inch.
So at the moment...
At last mine arrived yesterday after 3 months.
Heads up!!
If your removing #3 , #5 and overload you will need new shorter center pin .
Ironmans U bolts are thicker - so you need a step drill bit make the holes larger.
Also get some polyurethane friendly grease.
Yeah, That's confusing now. There is only one part no available for xterra on the catelogue and is rated for 0 to 660 lbs for rest of the world.
But on american website the same part no is listed as constant weight 660lbs to GVM.