4th Gen Suspension Options/FAQ

Bilstein 5100/FJ swap

What is the largest coil spacer configuration you would install with Billies and FJ coils? What setting to set fronts at?
 
How accurate are Bilstein 6112 circlip settings?

Im after 2 inches of lift from the 6112s on my 06' V6 4WD SE. But as you see its either the 4/2 or 3/1 combo that puts me just over or under 2"s of lift.

Circlip Location
Driver side / Passenger side
4x4 V6
Typical lift
heights**
#6 / #4 2.85”
#5 / #3 2.50”
#4 / #2 2.13”
#3 / #1 1.90”

Any chance someone out there is using either the 4/2 or 3/1 combos and actually achieving 2" of lift? Im tempted to use the 4/2 circlip setting and anticipate some settling. But if i use the 3/2 circlip setting and end up with more than 1.9"s of lift id be closer to the goal of 2"s. In either case im really dont want a result thats going to result in reverse rake.


Heres the instruction PDF i found on the bilstein site: https://www.truckspring.com/installation-instructions/bilstein/E4-WM5-Y508A00.pdf
 
Wheelers T1/T12s and 5100s

Figured I would share my experience. I just had Wheelers T1 and T12 coils installed. I initially had Bilstein 5100s installed around a year ago with the stock springs (the clip to the first setting just about leveled it). I just had the springs installed and had them put the clip back to the original setting. This ended up raising the front 1.5", and the rear went up 2.5"!? I was expecting for a level stance but I guess I should/could have left clips where they were. Maybe the rear spring will settle some. *FYI those are 265/70s
 

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Bilstein 5100s installed w factory coils, and other stuff; questions for you

Hey all, this forum has been super great. I've read through so much over the past year. Really appreciate the knowledge, so I'm going to give back what I can.

Just had the following installed to my '05 Limited 4.7 X-REAS all-factory (AFAIK) T4R with 97K mi on it (purchased Oct 2015 w/ 75K):
-X-REAS delete
-Bilstein 5100s all the way around, re-used factory coils and springs, set to .85" in front
-Wheeler's stem cushion kit for strut mount
-Wheeler's poly 1/4" top plate spacer Front Drivers side ONLY
-OME 10mm rear trim packer Drivers side ONLY
-Prothane poly sway bar bushings F/R (30mm/21mm in case any one else struggled on this for Ltds)
-Moog stabilizer bar links F/R
-F/R slotted dimpled rotors and metallic brakes from Brake Performance
-Alignment done (don't have printout but I will get it soon)
-Rear passenger axle seal leaking - FIXED

Also recently done was timing belt, water pump, and both front wheel bearings.

I also have the Wheeler's T1/T12 in my possession but did not install them because the T4R is my wife's daily and we have two kids under 2. I'm going to be putting the Continental Terrain Contacts 265/70 (currently stock at 265/65R17) very shortly as my Duelers are dry rotting and tread life is low. That will boost the car .5". I read one too many posts that the gains from Wheeler's were closer to 2", and a net 2.5" would be too much for my wife to hoist a heavy baby in the carrier in/out every day. It actually pains me that I couldn't throw those on there at the same time! :) Hopefully within the next 12 months though.

So the quick background is... I read through this forum over the past year or so and my suspension was in need of replacement, especially the rear. Couldn't keep it in alignment. Vehicle bobbed drastically side-to-side over speed bumps and ramps in/out of shopping centers and my driveway. Nose-diving when braking. Every little bump could be felt, and bumps were just harshhhh bro. So I was going to lift it with the Wheeler's, then was on the fence because of baby hoisting, and then finally icing on the cake that stopped me from lifting was I came across the UCA / alignment forum, and thought to myself, jeez, if my wife is saying don't lift it yet, what's she going to say if the caster isn't high enough and it's jumpy, wandering on the highway? Dealbreaker... so until I get the UCAs (prob JBA) I'm not going to lift it any further.

So here's my feedback so far after a full week of driving:
-Car is much more level, nose is higher. Great angle IMO.
-Previously there was no sag from coils/springs wear (except DS lean, see next line): 19" hub to fender front, 21" rear; 33"/35" ground to fender
-Driver's side lean is gone in the front, but is over-compensated for in the rear. So get this: prior was about 3/8" - .5" lower in the front, and 1/4" to 3/8" lower in the rear. Now the front driver's side is 34 1/4" (hair above, not quite 3/8"), passenger side front is 34 1/8". However, the rear DS is 35 7/8" and passenger rear is only 35 1/4". Gonna have to correct that. It could be I measured in correctly, but IDK man!
-No body roll, definitely much better than X-REAS was working for me, even at high speeds
-Little side-to-side bobbing, but only when it's me plus my wife and kids. Riding solo nearly none.
-Rear feels much tighter than before, but still isn't as good as I expected
-This thing drives perfectly straight on the highway, even with my one leaky tire being low according to TPMS. I mean like 10 seconds with no hands and it went dead straight. Amazing.
-Driving feel of steering wheel tightness and cornering is truly an enormous difference. Super pleased.

There are two things that I cannot figure and I've searched around, have some suspicions. So fellow runner buddies -- what do you think about these?

1. All the little tiny gritty bumps in the road - I can still feel those big time. Like a constant stream. Was in my 2012 accord today on the same roads. All those little bumps were so muted, not even close in comparison. Could the culprit be the factory coils/springs? Old, dry rotting tires? Some other component?

2. Difference in the sort of bobbing side-to-side over those parking lot / driveway ramps (up/down) when I'm driving solo vs have like 175-200 lbs more weight in the car, all in the middle. What gives? Wife and two tiny kids. Now this has not changed in essence since before I got the work done. The vehicle always rode a little better with one person in it, but I thought that would be fixed now. It's not like a 300lb load difference.

I'm just praying the answer is tires and coils/springs, or at least someone has the answer. Then I can sleep at night :) So again, what do you all think?

Also, I'll get some pics up soon.
 
Too short?

I feel like my rig isn’t high enough so 3/2 lift here I come I guess. What everybody think about a lift?:biggrin1:
 

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Hey fellas, just purchased an 2008 v8 limited 4wd came from
Owning a 2012 tacoma 2wd. Being a noob to 4runner and owning a 4wd i was wondering if anyone is running FJ springs and keeping the rear stock? If anyone is please post a pic would like to see how it looks.i just want the front to be level and have have a rake being stock . Thank you so much guys
 

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Bilsteins 5125 26" or 28" shocks used with metal tach 3" coils. Has anyone else done this and do you know what valving should be on them since there are a few options? Spring info below.


NextGen Spring Specs:
Free Length - 19.25 inches
Top Coil Rate - 104 lbs
Bottom Coil Rate - 300lbs
Total lift height 3 inches
453e48aad7952e24d820eae95d9611e8.jpg


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Need a little help before I pull the trigger on 33s. With 33s, do you have to do a body mount chop? Looking at 275/70/R18


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After reading several posts I still have answered questions, hoping someone can help. I have an 07 sport with the V6. I don't wheel a lot but I do tow a 1100lb teardrop camper. I'm wanting to switch out my shocks with bilstein 5100 primarily because I need new shocks and I'm wanting to level out the 4r plus I'd like to go to 32 or 33" tires. What do I need for the rear lift? I'm not opposed to going up to 31 or 32" tires but I know the weight on the rear will cause the bro look. So what options should I do? Should I adjust the shocks to 1.75 and leave the rear coils as is or replace them? Or do the 2.5 adjustment and add bigger coils in the rear? I did read size tires with lift so I'm ok with a small gain in tire size if I only do the 1.75 lift. Currently there is a 2" difference in the rear and front.

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Hey Guys,
Sorry if this has been answered previously in this thread, but I wasn't able to look through all of the hundreds of pages. Does anybody have the stock ride height of a 4th gen V8 with XREAS suspension?

I just lifted mine, and I'm wondering how much improvement I have?
Here are my measurements. I had a lot of sag before I lifted it.

I am also hoping to get it more level. Does anyone know how else I can bring the front up? I know I can get a .25" spacer for the front left to bring the front even, but should I do a tapered body lift to get the front up 1.5"? I didn't anticipate that the back would end up this high. Also, the rear is not level because I had a full tank of gas.
 

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Last edited:
After reading several posts I still have answered questions, hoping someone can help. I have an 07 sport with the V6. I don't wheel a lot but I do tow a 1100lb teardrop camper. I'm wanting to switch out my shocks with bilstein 5100 primarily because I need new shocks and I'm wanting to level out the 4r plus I'd like to go to 32 or 33" tires. What do I need for the rear lift? I'm not opposed to going up to 31 or 32" tires but I know the weight on the rear will cause the bro look. So what options should I do? Should I adjust the shocks to 1.75 and leave the rear coils as is or replace them? Or do the 2.5 adjustment and add bigger coils in the rear? I did read size tires with lift so I'm ok with a small gain in tire size if I only do the 1.75 lift. Currently there is a 2" difference in the rear and front.

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Bump for answer
 
Hey fellas, just purchased an 2008 v8 limited 4wd came from
Owning a 2012 tacoma 2wd. Being a noob to 4runner and owning a 4wd i was wondering if anyone is running FJ springs and keeping the rear stock? If anyone is please post a pic would like to see how it looks.i just want the front to be level and have have a rake being stock . Thank you so much guys

posted this in another thread but heres mine with moog 81108 fj coils in the front and moog 81045 4runner coils in the rear. also, mines a v6.
its sitting on a small slope toward the back in the pic but on flat ground it looks really level.
 

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THis would really help me figure out my 6112s i had installed last week. Can i ask what c-clip setting did you used and whats your hub to fender measurement?

Thanks

I set the clip on the top setting. The FL was sitting at 36" and FR at 36.5" after install. That is ground to fender. Now that it has settled I will re-measure for you... ive just gotta get it out of the driveway.
 
Hi, I meant to respond much sooner but got tied up.

I think that's a really good combination. I would set the 5100s to the 2nd lowest setting in the front (0.85" effective lift). That should accommodate a 32" tire (255/75/17).

If you plan to fit a bigger tire, you could set the front to 1.75" effective lift and add a spacer in the rear.

Let us know what you end up going with...
Sorry for the slow response I finally bought the 5100s I got engaged a couple weeks ago so I was short on funds for a bit haha but they should he here by Saturday and I'll install and post pictures once they arrive and once I install

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posted this in another thread but heres mine with moog 81108 fj coils in the front and moog 81045 4runner coils in the rear. also, mines a v6.

its sitting on a small slope toward the back in the pic but on flat ground it looks really level.



Looks good. From my research I was planning on using that spring and shock combo but on my 04 v8 SR5. I think I will try a higher clip for the 5100s. Maybe middle or near the top to help with the extra weight of the v8. I may just see how that works and have some rear daystar spacers ready in case I get some reverse rake.


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IMG_2460.JPGHere’s my 05 v8 on 6100s front and rear, set at the higher spring perch up front and daystar 1.5” spacer above the rear springs utilizing OE FJ springs front and rear


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