01-01-2022, 10:29 PM
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#1
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Join Date: Oct 2015
Location: South OC CA
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Member
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Location: South OC CA
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Rear bypass shocks
Hi,
Been thinking a lot at rear bypass shocks. Dirt king used to sell them and I believe down south still does.
There's not much on these forums about it but anyone have opinions?
I prefer desert/Baja driving. Want the rear to stay on the ground and dampen the best that it can.
Been trying to look for some used bypasses but not sure about what will fit and travel length.
Will king ever come out with a kit like the Tacoma's with a 3.0 coilover and bypass rear?
"I wanna go fast"
-Ricky Bobby
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01-01-2022, 10:37 PM
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#2
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Join Date: Oct 2015
Location: South OC CA
Posts: 160
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Member
Join Date: Oct 2015
Location: South OC CA
Posts: 160
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BTW Running kings that have been tuned for speed ha.
Front With duro bumps up front set to 2.5" of lift and UCA. None of this 3 inch bullsh*t.
Rear has 2 inch lift springs with wheelers bump stops
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01-01-2022, 11:28 PM
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#4
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Senior Member
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Join Date: Jan 2015
Location: Merritt Island, Florida
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Real Name: Brett
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Senior Member
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1988 DLX 22RE AUTO BLACK- "Granny" - SOLD
2003 SR5 SPORT V8- Build- "Pearl" You Tube 2UZ 120
2012 LIMITED V6 "LE Mae" 5TH GEN BUILD THREAD
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01-02-2022, 12:01 AM
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#5
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Senior Member
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Join Date: Jan 2019
Location: AZ
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Senior Member
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Quote:
Originally Posted by 4runick
Hi,
Been thinking a lot at rear bypass shocks. Dirt king used to sell them and I believe down south still does.
There's not much on these forums about it but anyone have opinions?
I prefer desert/Baja driving. Want the rear to stay on the ground and dampen the best that it can.
Been trying to look for some used bypasses but not sure about what will fit and travel length.
Will king ever come out with a kit like the Tacoma's with a 3.0 coilover and bypass rear?
"I wanna go fast"
-Ricky Bobby
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Bilstein 8100? They are boutique made in San Diego, specialty shocks, so availability right now is an issue but they are a fantastic off-the-shelf solution.
I will get the front 8112 when the option with dual compression adjusters comes out. They are more sophisticated shocks than anything else on the OEM direct fit market for a 4Runner.
The bypass adjusters on the 8100 do make a difference.
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2018 TRD OP non-kdss, well armored, well used
(6112s/650lb at 2.25" lift, 8100 rear with Bilstein B12 1.5" springs, Mickey Thompson ATZ P3 LTE 265 70 17, RCI set of front 3/16 skids, Shrockworks step sliders and 3/16 steel gas tank skid, C4Fab rear diff skid, Rockmen rear LCAs, Total Chaos rear LCA bracket skids, Diode Dynamics SS3 white fog lights).
Last edited by MAST4R; 01-02-2022 at 12:03 AM.
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01-02-2022, 01:21 AM
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#6
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I've read that an 8in stroke shock works in the rear, so if that's true (and if it's not, just need to find the right stroke for your setup) then any off the shelf bypass that is 8in stroke would work.
For OEM replacement bypasses, the Bilstein 8100's are it I believe. They do pretty well considering the small amount of travel. There's a guy on youtube that has made some vids showing him in Glamis and testing in Ocotillo Wells with them in his 4th gen. Drone footage of glamis duning in a 4runner - YouTube
So you currently have the 2.5 Kings in the rear and still getting some hopping? I too like going fast and have tried Bilstein 5160's and now running Ironman 4x4 Foam Cell Pro's with Ironman's HD 2in spring and Durobumps. Wanted to go Kings, but I'm also building a 2WD F150 for the dez, so saving the money shocks for that.
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01-02-2022, 11:22 AM
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#7
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Join Date: Feb 2016
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few guys have bypasses. I believe the issue is the tube layout for clearance. hit up DOM (DRkdss) on IG hes running them. Hydraulic bump stops are also a great add on for the rear. ICON has their in the spring setup, i'm running the total chaos mounts and the king threaded bumps on the outside of the frame rails. is bueno.
the back end on ours feels pretty dialed considering its stock pivots. Kings, Wheelers (toytec HD when were loaded up) King bumps. No bucking.
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2016 TE : Grocery Getter, 34/10.5R17 Toyo at3, Prinsu Rack, King Coilovers, DuroBumps, ToyTec HD 2.0 springs, King shocks, King hydro bumps, Total Chaos mounts, DirtKing Fabrication UCA, VIVID RACING Tune, URD Y pipe, RCI skids, Marlin Crawler gussets, DRKDSS everything
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01-05-2022, 01:27 AM
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#8
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Member
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Join Date: Oct 2015
Location: South OC CA
Posts: 160
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Member
Join Date: Oct 2015
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Quote:
Originally Posted by MAST4R
Bilstein 8100? They are boutique made in San Diego, specialty shocks, so availability right now is an issue but they are a fantastic off-the-shelf solution.
I will get the front 8112 when the option with dual compression adjusters comes out. They are more sophisticated shocks than anything else on the OEM direct fit market for a 4Runner.
The bypass adjusters on the 8100 do make a difference.
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Ya I actually almost bought those once just hovered over the pay button. I feel like I want to see what they do to improve them but doesn't seem like they need to. I always wanted progressive damping so never really went that route.
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01-05-2022, 01:28 AM
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#9
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Join Date: Oct 2015
Location: South OC CA
Posts: 160
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Member
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Location: South OC CA
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Quote:
Originally Posted by honda250xtitan
few guys have bypasses. I believe the issue is the tube layout for clearance. hit up DOM (DRkdss) on IG hes running them. Hydraulic bump stops are also a great add on for the rear. ICON has their in the spring setup, i'm running the total chaos mounts and the king threaded bumps on the outside of the frame rails. is bueno.
the back end on ours feels pretty dialed considering its stock pivots. Kings, Wheelers (toytec HD when were loaded up) King bumps. No bucking.
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Thanks!
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01-05-2022, 01:29 AM
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#10
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Join Date: Oct 2015
Location: South OC CA
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Quote:
Originally Posted by 4RunnerAquasport
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Thanks I'll check that out. There's always someone upgrading.
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01-05-2022, 01:32 AM
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#11
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Join Date: Oct 2015
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Quote:
Originally Posted by dezertbomber
I've read that an 8in stroke shock works in the rear, so if that's true (and if it's not, just need to find the right stroke for your setup) then any off the shelf bypass that is 8in stroke would work.
For OEM replacement bypasses, the Bilstein 8100's are it I believe. They do pretty well considering the small amount of travel. There's a guy on youtube that has made some vids showing him in Glamis and testing in Ocotillo Wells with them in his 4th gen. Drone footage of glamis duning in a 4runner - YouTube
So you currently have the 2.5 Kings in the rear and still getting some hopping? I too like going fast and have tried Bilstein 5160's and now running Ironman 4x4 Foam Cell Pro's with Ironman's HD 2in spring and Durobumps. Wanted to go Kings, but I'm also building a 2WD F150 for the dez, so saving the money shocks for that.
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Hey thanks, I have seen those videos. I should just do the complete package 8112)8100.
I'm not getting too much hopping. Just want more control in the rear and have some control at the end of compression. Also if I go long travel front I want to make sure the rear can keep up with not a ton of make fabrication.
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01-05-2022, 12:11 PM
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#12
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Join Date: Nov 2019
Location: San Diego
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Quote:
Originally Posted by 4runick
Hey thanks, I have seen those videos. I should just do the complete package 8112)8100.
I'm not getting too much hopping. Just want more control in the rear and have some control at the end of compression. Also if I go long travel front I want to make sure the rear can keep up with not a ton of make fabrication.
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Old Man Emu has some internal bypass that has external rebound and compression adjusters.
Old Man Emu BP-51 Internal Bypass Reservoir Shocks Rear Pair for 2010- – Shock Surplus
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01-05-2022, 12:55 PM
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#13
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Location: San Diego
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01-05-2022, 02:09 PM
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#14
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Senior Member
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Join Date: Jan 2019
Location: AZ
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Quote:
Originally Posted by 4runick
Ya I actually almost bought those once just hovered over the pay button. I feel like I want to see what they do to improve them but doesn't seem like they need to. I always wanted progressive damping so never really went that route.
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The 8000 series is linear damping.
Why do you want progressive, which would suck on pavement? Also, don't assume that King is progressive. You need to call them and see what damping they actually use in their OEM replacement kits for 4Runner.
I guess they use linear and not progressive for this kit.
Also, it is totally an option to have 8100 rears with Fox front or King front.
I like Radflo and they are cheaper but I have also heard complaints that their quality is inconsistent.
__________________
2018 TRD OP non-kdss, well armored, well used
(6112s/650lb at 2.25" lift, 8100 rear with Bilstein B12 1.5" springs, Mickey Thompson ATZ P3 LTE 265 70 17, RCI set of front 3/16 skids, Shrockworks step sliders and 3/16 steel gas tank skid, C4Fab rear diff skid, Rockmen rear LCAs, Total Chaos rear LCA bracket skids, Diode Dynamics SS3 white fog lights).
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01-05-2022, 03:57 PM
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#15
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Elite Member
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Join Date: Dec 2014
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I believe there are some pre production ICON rear bypasses out in the world. Part of the Omega series like they do for the Slinky setup for Land Cruisers. I don't know how they perform. But they look the part at least.
The other outside the box thought would be to try a set of TRD Pro bypass fox shocks. Maybe they're fantastic. I don't know anyone who really uses a TRD Pro with the OEM suspension that pushes it really hard and I've never had the opportunity myeslf to try it with a TRD Pro fox suspension setup. But it could be great. Could be crappy. Just don't know. I'd bet they're at least decent given the resources Toyota has and the internal design being pretty good.
Along the lines of the TRD Pro 4R rear shocks - I don't know how the fit would be for a lifted 4R to use Tundra TRD Pro rear bypass shocks. I considered some take off Raptor rears, weight is actually pretty close, but they're way too long to even install. They're about 4 inches too long. Tundras are basically the same length as 4Runners though. So they might work as another alternative with firmer valving.
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