Coil Rates: OEM 4runner, OEM FJ, Moog, & Others

[jrm]

My comfort zone is around

Love that this thread is still active. Let's keep it going.

2006 4wd 4runner here, planning on going with bilstein 6112s in the front and 5160s in the rear. I'm here to find out which rear spring would work best for me: stock weight most 95% of the time (daily driver). Loaded up with a Roof top tent, roof rack, and cargo for trailing and camping (no bumper, winch, etc). From what it sounds like, OME 895 will be too stiff (even thought this is what all the local shops are recommending in orange county..).

So now I'm looking at this chart and what others have said, and it seems like I should be considering Moog 81045s, Sway-a-Way 1.5s, All pro 2"s, Wheeler T12s (no info on these, but I've seen them recommended a few times in the forums), or Icons.

Does anyone have any comments on which of the above might work best for me?

Also considering adding a 1/2" cornfed spacer on the rear driver side to account for any lean that may present itself. My question here is... I don't notice any lean on my stock ride (104k miles), so why should I expect a lean to introduce itself with all new suspension components? Doesn't make sense to me.

Thanks for any input.

for rear spring rates is 220# and the around 600# up front.

 

[alextmullis]

Coil Rates: OEM 4runner, OEM FJ, Moog, & Others

Yeah I️ don’t mind the fronts but the rears are trash. Will upgrading to the toytec superflex here soon

 

[03sr5]

Has anyone used the moog 81045? I just put new shocks in and gained .6 in the rear and don't really want more lift. Fj and 5th gen 4runner springs I believe would give me another inch, but was wondering if there is a spring in the 200lb range that would give me around half an inch?

 

[Maximum_Yes]

Has anyone used the moog 81045? I just put new shocks in and gained .6 in the rear and don't really want more lift. Fj and 5th gen 4runner springs I believe would give me another inch, but was wondering if there is a spring in the 200lb range that would give me around half an inch?

I'm reading about fitment issues on these for T4R 4th Gen on Amazon. Any truth to this?

 

[jrm]

I understand the

Has anyone used the moog 81045? I just put new shocks in and gained .6 in the rear and don't really want more lift. Fj and 5th gen 4runner springs I believe would give me another inch, but was wondering if there is a spring in the 200lb range that would give me around half an inch?

the T13 rear coils provide around an inch of rear lift. The same goes for the dobinson 323s which i have on my 06'

 

[danronian]

Great info! This helps me a lot in picking springs.


Sent from my iPhone using Tapatalk

 

[PureSlice]

Can someone tell me the OD of the rear springs and if they are double pigtail etc?

also what size are the front springs? 5.5"?

 

[euy]

hello all, old timer back at it again due to blown leaky shocks.

old suspension set up:
FRONT: OEM FJ shocks and springs (not sure which version) DS 1 inch spacer.
REAR: OEM T4R shocks FJ springs and DS1.5 spacer.
RIDE: firm and comfortable, very satified huge improvement over stock correcting everything i didn't like about the 4Runner when i got it (soft, floaty, brake dip, rake)

new set up:
FRONT: 5100 (1.75) and FJ springs
REAR: 5100 FJ springs DS 1.5

results: ride height is about the same (forgot to measure before) BUT the ride is like pre old suspension. i am thinking about the getting swapping out the springs, i have out 100K miles on them.

looking for springs to firm up the ride without too much change to the ride height. a little lower is fine but going up isn't really what i want.

considering moog springs but do not which ones. any help would be great...thanks in advance.

-e

 

[termanator20548]

So i am currently running superflex coils in the rear, and am considering a rear bumper which would be plus about 120 pounds. Would they be able to handle that weight? I know superflex are 10% stiffer than stock but i cant seem to find any information on their weight capacity.

 

[Forever_Student]

Missing Table?

I swear the original post used to have a table of suspension values. I've SEEN it. I've been going crazy this morning trying to find it. :smash::smash::smash: I'm almost POSITIVE it was here. Does anyone know what I'm talking about? Or what's wrong? Or where to find it?

Someone from a previous post posted something about "Photo Bucket is down". Does it ever come back up? How often does it "go down"?

 

[techno]

It's still there....

Sent from my moto g(6) play using Tapatalk

 

[Jeremy_A]

Those interested:
Toytec 2.5 fronts are 15" in length

I've see a lot of discussion regarding the FJ swap and whether or not the Moog FJ coils were a better option than OEM FJ coils. After doing some searching, I've found some of the numbers for the Moog coils, and paired that with some info I already had.



A couple notes:

1. The measurement for the OEM 4runner front coils is for a V8 4wd. The front coils on a v6 4wd are .2" shorter. 2wd 4runners use a different coil, but so far I haven't found specs on those. All models use the same rear coils.
2. I couldn't find the spring rate for the front OEM FJ coils. I saw numbers all over the place, ranging from 530 lb / in to 630 lb / in. Most seemed to be in the 550 lb / in range, but from my experience the FJ coils are slightly stiffer than the OEM T4R coils, so that number doesn't add up.
3. The 540 lb / in number for the Tacoma coils doesn't make sense either. I found the same number in several places (could have been all from the same source) so I posted it. Based on my experience, I'd say the Tacoma coil is stiffer than the FJ.
4. Some aftermarket coils only show the % increase over stock, so I tried to calculate the spring rate. These numbers are in dark blue and in bold.

It's hard to compare the OEM FJ to Moog FJ coils since I don't have all the numbers. What I can tell is that front Moog FJ coils have the same spring rate as the OME 886 coils, which is very stiff. If I were to order Moog coils, I'd order the 4runner version (v6 or v8 depending on how much lift you want) for the front. I can't say on the rear since Moog did not provide the coil rate for those. I'd expect a minimum of 1" lift in the rear with the Moog coils based on the height. My only concern would be spring rate, and whether or not it'd be too stiff.

The majority of this data was pulled from the following pages:
Coil Rates - Toyota 120 Platforms Forum
Rear Spring Comparison - Page 13 - Toyota FJ Cruiser Forum
Federal-Mogul Resource Center - Vehicle Look-up

 

[Tuby27]

2004 sr5 4x4 daily driver and no extra body weight. Thinking of going with 5100 around and wheelers springs both front and back, no spacers. I understand these have a stiffer ride than stock and I don’t mind since I may use it for trails and camping. Anyone have this set up? What is the lift gain, my research is between 1-2” front and back. Just hoping to get a little extra lift than stock. Please advise if I need to set the front at a different perch to level/slight rake with the rear springs.

Thanks

 

[sport2004]

i am amazed at the possibilities, and wonder for those with the stiffer rear springs, whether the rougher ride is OK as long as long as you are hauling increased weight, in other words looking for a definition of the trade-off (if that makes sense).

 

[Jeremy_A]

Icon 2.0s are 16.5" long

I've see a lot of discussion regarding the FJ swap and whether or not the Moog FJ coils were a better option than OEM FJ coils. After doing some searching, I've found some of the numbers for the Moog coils, and paired that with some info I already had.



A couple notes:

1. The measurement for the OEM 4runner front coils is for a V8 4wd. The front coils on a v6 4wd are .2" shorter. 2wd 4runners use a different coil, but so far I haven't found specs on those. All models use the same rear coils.
2. I couldn't find the spring rate for the front OEM FJ coils. I saw numbers all over the place, ranging from 530 lb / in to 630 lb / in. Most seemed to be in the 550 lb / in range, but from my experience the FJ coils are slightly stiffer than the OEM T4R coils, so that number doesn't add up.
3. The 540 lb / in number for the Tacoma coils doesn't make sense either. I found the same number in several places (could have been all from the same source) so I posted it. Based on my experience, I'd say the Tacoma coil is stiffer than the FJ.
4. Some aftermarket coils only show the % increase over stock, so I tried to calculate the spring rate. These numbers are in dark blue and in bold.

It's hard to compare the OEM FJ to Moog FJ coils since I don't have all the numbers. What I can tell is that front Moog FJ coils have the same spring rate as the OME 886 coils, which is very stiff. If I were to order Moog coils, I'd order the 4runner version (v6 or v8 depending on how much lift you want) for the front. I can't say on the rear since Moog did not provide the coil rate for those. I'd expect a minimum of 1" lift in the rear with the Moog coils based on the height. My only concern would be spring rate, and whether or not it'd be too stiff.

The majority of this data was pulled from the following pages:
Coil Rates - Toyota 120 Platforms Forum
Rear Spring Comparison - Page 13 - Toyota FJ Cruiser Forum
Federal-Mogul Resource Center - Vehicle Look-up

 

[JONBOY345]

Reuploaded to imgur cause Photobucket sucks.

 

[scrich2929]

It's my first time posting on T4R.org so hello everyone. I bought an '03 V6 4wd last month and I'm ready for the lift. My plan was to put the FJ Moog coils up front with Bilstein's set at 1.75 and do the Eibach Pro-Truck 1'' lift coil in the rear with Bilstein's. But it seems like these Moog's might put me over the 3" lift mark. So what I'm trying to figure out is if I go Moog up front, should I go with T12 1.5" springs in the rear or the Eibach 1"? And would I need new UCA's? I would like to avoid that. I have not found any exact numbers for people using the Moog FJ's and setting it at 1.75. Factory FJ's are said to lift the front 1" plus whatever the Bilstein is set at, but it seems that these Moog FJ's are bigger than factory FJ. Side note: The goal is to fit 275/70r17 Wildpeaks. Thanks in advance.

 

[BrunoKnoxville]

I updated the spreadsheet with some new-ish info. Icon told me that their rear 2" springs have a spring rate of 200lbs (he could have been rounding down from 207); he also told me that the 3" dual-rate springs are 200 over 300 (which may also be rounded).

There are now several types/sizes of Superflex springs, I'm waiting to hear back from Toytec about their specific spring rates.

 

[Blute]

FYI, I contacted Eibach for more info on their springs, and they provided the following:

E30-82-073-01-20 front coils
Free length = 360mm, Rate = 720 lbs/in, Wire size = 17mm

E30-82-073-01-02 rear coils
Free Length = 373mm, Rate = 205 lbs/in, Wire size = 15.5mm

E30-82-073-02-02 rear coils
Free length = 382mm, Rate = 250 lbs/in, Wire size = 16.5mm

I was surprised at the spring rate on those front coils, so I asked again just to confirm, and yes they are 720 lb springs. Those are dang heavy (24% over stock) but the Eibach rep. said with the Tacoma overlanding crowd they had a lot of people asking for increased rates to compensate for heavy gear (bumpers, winches, sliders, etc.).

 

[Blute]

I updated the spreadsheet with some new-ish info. Icon told me that their rear 2" springs have a spring rate of 200lbs (he could have been rounding down from 207); he also told me that the 3" dual-rate springs are 200 over 300 (which may also be rounded).

There are now several types/sizes of Superflex springs, I'm waiting to hear back from Toytec about their specific spring rates.

You ever hear back from Toytec with data on their springs?