Originally Posted by rickashay

I for one, would love a LT rear spring capable of staying in the coil buckets at full droop, capable of supporting 200-250lbs of rear weight (over stock) and sitting at 2.5-3” of lift. My ideal spring may be different than yours, but that’s where we can start to collect some data and see if there are some common themes to approach a vendor about a custom spring potentially.

Originally Posted by 4-Ripcord

I went through the same process on my last 4runner, actually had most of these springs on it at one point or another trying to find the right one I liked.

I used some OME chart to fill in spring rates for most of them, and confirming free heights by hand measurements. The superflex and 891 are progressive so hard to give an exact value for, but superflex definitely felt softer than the 861. IMO the 861 were too stiff.

In the end I was most happy with the superflex, and would get that again if I built another t4r.





My requirements were very similar to yours: +250ish lbs, less than 3" lift, long enough to not fall out when drooped.

Originally Posted by TCMach

I need a 1" lift coil that holds weight like an 861 and has enough free height not to fall out.....