GreggyG

All I can find is these measurements with FJ springs. I'm ordered Moog 4Runner springs and I want to lift the front to better level with the rear. I have an 06 gx470 and it's a tad heavier than the v8 4x4 4Runner.

My current stock front suspension is sagging at 18.5-19" from hub to wheel well and 32.5-33" ish from ground to wheel well (all depending on how level the road is).

I am not sure what bilstein setting because I don't know how much of a lift I will get from just having new 4Runner springs anyway. My rear is height adjustable still and are currently at 22-22.5"ish from hub to wheel well and 36.5"ish from ground to wheel well. However, I recently just "reset" the height but I think I have a small leak and that it may go back done to the 35-35.6" range? I will eventually swap out for rear FJ coils for the airbag to foil conversion.

Can anyone with bilstein 5100 and stock springs or new 4Runner springs give me some height measurements please and on what setting?

and, the Moog 4Runner springs are about 14.5" long, how long are our stock ones?

GreggyG

The Moog 4Runner springs are 14.3 and I think the gx springs are 14.5

i have an 18.5" measurement on one side and 19" on the other, I'd like 21" for it to be perfect for me with the rear. Do you think the .85" setting will do it because I've got some sag in my old suspension?

co4wheel

It's not just about length. It's also about the rate with the heavier V8. I have not researched it. But Preloading a lower rate spring is not going to have as good of a result as using the proper spring to begin with.

GreggyG

ours should be 605lbs and the moog 4runner is 595lbs. I figured that was close enough because the moog FJ springs were 660lbs and I already heard that the 5100s were going to be stiffer anyway.

co4wheel

Springs hold the vehicle up. Stiffer shocks make no difference in that equation. Your adding lighter springs and cranking up the preload on what is also a shorter spring. I don't know where I read someone tried this and it didn't work that well. Keep in mind that even good springs are rated to about 5% of the actual rate. 5% of 605lbs is a LOT. So if you get a slightly light 595lb spring it may suck. If you get a heavy 595lb spring it will be better then the 605lb springs. Shocks that are stiffer is about dampening. The dampening is strongest in the rebound direction to slow the rebound of the springs after it hits a bump. Heavier rate springs need more rebound dampening to not be bouncy. Paired with the 605lb springs the Bilstein's are really not "stiff". They are actually pretty smooth really. People who say they stiff are the ones who are using the higher springs perch height. Preloading the springs beyond what was intended is the issue. That is the road you are heading down. I would avoid it with the 5100's especially with too light of a spring that is also shorter then needed.

When i said I have not researched "it" I meant the rate of the oem replacements. Never looked at those that closely.

GreggyG

thank you, I'll keep that in mind.