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Suspension Upgrade- Bilstein 5100

Discussion in '5th Gen Builds (2010-2024)' started by delta_runner22, Jan 4, 2023.

  1. Jan 4, 2023 at 2:16 PM
    #1
    delta_runner22

    delta_runner22 [OP] New Member

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    I’m going the bilstein 5100 route for a suspension upgrade (maybe fox or king down the line so don’t come for me) and I’m just wondering if I should upgrade the coils or re-use the stock coils? My goal is to have more clearance off-roading.
     
    DrewMan and TrailSpecial22 like this.
  2. Jan 4, 2023 at 3:01 PM
    #2
    nimby

    nimby in the drink

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    Stock coils are fine so long as you don't add a bunch of weight.
     
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  3. Jan 4, 2023 at 3:52 PM
    #3
    delta_runner22

    delta_runner22 [OP] New Member

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    I think down the line I want to add armor… so weight is definitely a factor. From my research I see OME 885 in the front and 889 in the rear provides the lift I’m looking for with the 5100 kit. I think I might go that route… thanks for the input!
     
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  4. Jan 5, 2023 at 4:02 AM
    #4
    BobbyB

    BobbyB New Member

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    SSO Slimline Bumper Warn Evo 10s winch Bilstein 5100 shocks Dobinson Springs (front and rear) JBA Upper Control Arms Baja Designs Squadron Pro Combo lights Diode Dynamics SS3 Pro Foglights RCI skids (engine, trans, Txfr and gas tank) CaliRaised sliders UpTop Overland Bravo Rack Auxbeam 6 switch panel Frac Harness with front camera Custom rear diff breather on firewall
    I have the 5100’s on my rig and initially used the stock coils with front 5100’s set at .85” to level it. This setup worked nicely to level and firm up the ride.

    When I made the decision to add a bumper, winch and skids, I upgraded the springs all around with Dobinsons. I used the 302’s up front and 599’s in the rear and with the extra weight, ended up with about 2” lift all around. I also added JBA UPC to ensure I could get a good alignment but likely would have been fine with the OEM UPC. I’m very happy with the results.

    CrikeyMike at Exit Off-road is the expert with Dobinsons suspension systems and helped me select the parts for my rig. You might consider reaching out to him for his recommendation.

    Cheers,
    Bob
     
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  5. Jan 5, 2023 at 8:00 AM
    #5
    kmeeg

    kmeeg LionRunner

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    I think higher spring rate at 0 lift setting vs stock springs with higher preload setting seems same thing.

    I know spacers are the most hated topic but for me if just a little front lift is needed for bigger tires a small spacer over front will keep the stock ride comfort. Only thing my 4x4shop friend told me is if I don't upgrade front bump stops don't hit obstacles hard as it would top out the shocks and damage them. He told anyways if I hit hard on Bilstien5100s it would damage the weld points too.

    As someone who has played with multiple lifts my would suggest if you are paying a shop for the install go big, do it in 1 go.
     
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  6. Jan 17, 2023 at 5:23 PM
    #6
    TrailSpecial22

    TrailSpecial22 New Member

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    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, TRD skidplate, TRD stainless catback w/black TRD side exhaust, TRD shifter handle, Weathertech bug deflector, 20% tint front, LED door bulbs, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops, SSO Slimline Bumper w/ Badland Shackles
    I love my set up:
    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops
     
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  7. Jan 17, 2023 at 5:25 PM
    #7
    TrailSpecial22

    TrailSpecial22 New Member

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    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, TRD skidplate, TRD stainless catback w/black TRD side exhaust, TRD shifter handle, Weathertech bug deflector, 20% tint front, LED door bulbs, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops, SSO Slimline Bumper w/ Badland Shackles
    agreed, once and done
     
  8. Jan 17, 2023 at 7:15 PM
    #8
    HazOpRed

    HazOpRed 22' TRDOR

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    The following is my experience with Bilstein 5100s. I probably need to do a write-up on it so this sounds less like a 7/11 crackhead wrote it.

    I put the front set at the 2nd to last clip. This is supposed to give you 1.5" of lift. It gave me 2".

    I got rear Wheeler T13 coils. Supposed to give me a 1.5" lift. It gave me 2".

    Some combination of these components reduced my driver sag to less than 0.5". It also resulted in the rear of my 4runner being only 1" taller, which was desired (2" would have been fine with me too).

    I intended on achieving a 1.5" lift because I wanted the lowest chance possible of the uca being a limiting factor. I was going for maximum reliability. For some reason, 4runners are very variable on when that is a problem. Could be 2", could be 3". It doesn't seem to be a problem for mine at 2".

    If you are not interested in a lift, I would either leave the front stock or move it to the 2nd clip for the supposed 0.85" lift. For me, I guess that would have given me almost 1.5", nearly leveling the vehicle. I am very curious to see how 1" rear springs and the 0.85" clip setting would have turned out. I am also interesting in what a rear spacer would have yielded for ride quality.

    Ride quality: Vastly improved in almost all situations. The vehicle is more compliant. The shocks reduce body roll enough to at least offset the height. I feel as if I can go faster in a corner (but who cares about that). Nose dive isn't reduced, because that is a function of the spring rate of the front coils as far as I know. Hell, maybe the rear coils even helped it a bit. It feels reduced because it comes back to stock height faster at least. The only negative part is you can definitely feel shitty parking lots and crappy pavement at low speed. My mother reports the rear seats as being bumpy, so maybe take that into consideration if you have children or whatever (that is due to the T13 coils have around ~202lbs of spring rate, a little more than the 180lb stock rate). If you did just shocks, it would not be bumpier in the back. I personally don't mind, I am used to old trucks. I also like how it doesn't sag as much towing. The vehicle is way more compliant on trails.

    I would highly recommend not going with anything higher than around 200lb spring rate in the rear, unless you are adding significant weight. I would bet 220lb spring rate in the rear would ride far worse. At least for your rear passengers.

    Some of this depends on what you want to achieve. Do you want metal bumpers all-around? Immediately step up to something far more expensive with remote reservoirs. You will need much higher coil spring rates on the front and the back. You will be a slug. You will also have to change your front diff fluid very often. I would definitely talk to people if you are going that far. Do you only want improved ride quality? Great choice. Do you want a cheap lift? Great choice. Do you want to run slightly bigger tires? Good choice.

    I avoided the spacers because the shocks are literally $100 per corner, so spacers would be a waster of money. With coils being $200, this is a very cheap, good lift at $600. It takes roughly 6 hours to do it too. Just make sure you mark your alignment cams and get those close.

    I will note, you can do this safely without buying a full strut assembly. You just loosen the control arm and slip the shocks out, which is why you have to mark your alignment cams. Saves on cost.
     
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  9. Jan 18, 2023 at 4:36 AM
    #9
    TrailSpecial22

    TrailSpecial22 New Member

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    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, TRD skidplate, TRD stainless catback w/black TRD side exhaust, TRD shifter handle, Weathertech bug deflector, 20% tint front, LED door bulbs, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops, SSO Slimline Bumper w/ Badland Shackles
    great write up! I have 5100 set up all around on my 2011 using all stock coils. Set for a 2” in the front and 1” spacers in back. That alone was night and day compared to the toyota oem stuff and loved it, still do. knowing what I know now and what I did to my 2022, I wish I would have set up my 2011 like my 2022. With the 600lb springs in front (waiting for my Slimline bumper to arrive) nose dive under hard braking is barely noticable, T13 coils give you a proper lift and improve sag when I load it, barely .50-.75” loss.

    Install was super easy, fronts took about 1hr each dropping lca out of the way and rear coil swap was about 30 mins each side.

    either route you go, you will notice increases in ride quality and handling far above the stock set up.
     
  10. Jan 18, 2023 at 11:34 AM
    #10
    beedee

    beedee SR5 Peon

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    I have 5100's all around, fronts set on the bottom cir-clip with Dobinsons 302's up front, and 1" CornFed rear spacers. Had Dobinsons 599's on the back, but they gave me too much lift for my stock weighted vehicle. Vehicle profile sits great, ride is great and I've been on this for almost two years now.

    IMHO, springs are tricky when it comes to ride height based off of all the variables out there regarding extra weight or no extra weight on people's 4Runners. Just about everyones results vary, even with the same mods or not.
     
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  11. Jan 19, 2023 at 5:57 PM
    #11
    HazOpRed

    HazOpRed 22' TRDOR

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    Damn you must not drink when you work on stuff
     
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  12. Jan 19, 2023 at 7:12 PM
    #12
    TrailSpecial22

    TrailSpecial22 New Member

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    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, TRD skidplate, TRD stainless catback w/black TRD side exhaust, TRD shifter handle, Weathertech bug deflector, 20% tint front, LED door bulbs, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops, SSO Slimline Bumper w/ Badland Shackles
    the faster i work the more time i have to drink!
     
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  13. Jan 19, 2023 at 9:09 PM
    #13
    TrueTexas

    TrueTexas New Member

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    I agree with this completely. When I originally installed my 5100s I removed the sway bar link to make room for the spring to drop out. Worked but not as well as when I installed my .25" spacer on the drivers side. That time I loosened the lca and was able to drop the assembly right out. Super easy. Just make sure you mark the cams. Not a biggie if you're getting it aligned afterwards.

    @delta_runner22 I am extremely pleased with the 5100s. Took the nose dive out and are great on the highway. Decent off road (forest roads etc...). Obviously they are not the best option for more aggressive offloading but I weigh how much time I'm going to spend on each type of surface and make decisions that way. I have a Jeep for more aggressive of reading and don't care quite as much about the Jeep as I do the T4R.

    Anyway, after multiple tweaks, my suspension setup is as follows

    Front
    Bilstein 5100 set at 1.85"
    .25" spacer on drivers front
    Ironman UCAs

    Rear
    Bilstein 5100s
    Bilstein 1" lift springs
    10mm ome spacer on drivers rear.

    The Spacer pretty much correct the lean that will be very noticeable after lifting the truck. The UCAs fix the caster.
     
  14. Jan 20, 2023 at 8:17 PM
    #14
    HazOpRed

    HazOpRed 22' TRDOR

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    Interesting you still needed a spacer, mine corrected itself for some reason after my shocks and springs
     
  15. Jan 21, 2023 at 6:27 AM
    #15
    TrailSpecial22

    TrailSpecial22 New Member

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    2” lift Bilstein 6112 w/600 lb coils front, 1.5” lift Eibach T13 coils rear, Bilstein 5100 rear shocks, TRD skidplate, TRD stainless catback w/black TRD side exhaust, TRD shifter handle, Weathertech bug deflector, 20% tint front, LED door bulbs, 285/70/17 Falken WP AT3, Energy Suspension front bumpstops, SSO Slimline Bumper w/ Badland Shackles
    Had an interesting encounter last night with a 6 pt buck on a slight curvy road doing about 40 miles an hour. It’s safe to say that with the OEM set up it would have nose dived to the ground and felt like I was going to flip end over. however with the set up I have on it now and full panic breaking to not hit the deer standing in my lane, the 4rn stayed controlled , barely nosedived, stopped flawlessly and quickly with about 20’ to spare. I guess the buck was also impressed because he just stayed there for another five seconds staring at me before he moved on. Lol!
     
  16. Jan 21, 2023 at 9:23 AM
    #16
    funrunner21

    funrunner21 New Member

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    RC 3inch spacers and rear shocks
    Hello my fellow Runners, can someone tell me what the typical suspension height difference is on the 4runner(2021 trd offroad) in stock setup. i have a spacer lift kit so i don't know what it was before it was modified. i see a few folks adding a 2" front and 1" to 1.5" in the rear.
    thank you all, always appreciate your expert opinions.
     
  17. Jan 21, 2023 at 10:32 AM
    #17
    hossler1788

    hossler1788 New Member

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    My stock hub measurements(center hub to edge of fender) were 20" front and 21.5" rear
     
  18. Jan 21, 2023 at 11:43 AM
    #18
    funrunner21

    funrunner21 New Member

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    Awesome, thanks, that gives me a better idea of what to purchase for front and rear.
    thanks again,
    Flg
     
  19. Jan 23, 2023 at 5:57 PM
    #19
    HuskerRunner

    HuskerRunner New Member

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    Do you have a pic when it was just on the first notch? Have this on my taco now and love it, curious how much it changes the stance on a 4R
     
  20. Jan 23, 2023 at 8:15 PM
    #20
    TrueTexas

    TrueTexas New Member

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    Easiest way to get an idea of what it will look like on your rig is to put a jack under the front center and jack it up .85"

    Measure from the bottom of the fender to the Centerpoint of the wheel to know how much you've jacked it up.

    Also, the front side plate has a hole in the center rear that is a jacking point.
     
  21. Jan 24, 2023 at 7:02 AM
    #21
    HuskerRunner

    HuskerRunner New Member

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    I dont actually have a rig to jack yet. We're on a waiting list. I'm just looking at all the build threads getting an idea of what I want. Had my Taco for 7 years now but 2nd Gen apples arent 5th Gen oranges so I cant spot what I'm looking at right away
     
  22. Jan 24, 2023 at 7:47 AM
    #22
    TrueTexas

    TrueTexas New Member

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    That definitely makes it a little more challenging.
    I originally was thinking of just leveling the front by setting it at .85". Ended up going 2" f and r.
    There were a ton of threads and pictures on this site of folks that just leveled the front. Just search for them and you can get a good idea.

    Once you get your rig, I suggest trying the jack method to see what it will look like for real before installation.
     

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