3-links. NOT FOR THE STREET! - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > General Tech > Newbie General 4x4 Discussion
Notices

Reply
 
Share Thread Tools Display Modes
Old 07-14-2008, 11:08 AM   #1 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
3-links. NOT FOR THE STREET!

Ok to start off I am not saying that 3 links are bad. I actually build most of my customers rigs using front 3 links with a panhard. But after a spectacular event this weekend I have come to the conclusion that 3-link suspensions are not safe enough for the street.

I built a rear Y-link setup for my 00 Tj using adjustable lowers and a full-traction upper that utilizes heavy wall DOM and an EVO joint a the axle. I also built a truss over my D44 using 3/8 plate. My jeep does have a rear spool so there is a large amount of force put onto the suspension.

I was driving home yesterday when I took a turn onto an over pass. I was going pretty slow since my girlfriend was following me. I was going maybe about 20MPH when the upped Y-link broke causing the lower link to sheer and causing the rear tire to brake off all the studs. When the axle slammed into the ground and then wrapped up under the rear of the jeep it sent me into a violent roll. My jeep did two complete barrel rolls before resting on it's lid. Thankfully there was no oncoming traffic and my tire missed the cars speeding by on the Hwy below. But it goes to show that some things that work for slow speed wheeling don’t pass as safe for on road driving. Oh and of cores I am fine thanks to my very well built cage, actual the jeep has not a single dent in it amazingly.

My .02

Last edited by Action Fab; 07-14-2008 at 11:11 AM.
Action Fab is offline   Reply With Quote
Old 07-14-2008, 11:18 AM   #2 (permalink)
Registered User
 
RickyRetardo's Avatar
 
Join Date: Jul 2006
Member # 74849
Posts: 346
Glad to hear you walked out of that ok. Do you think the failure was something that was going to happen over time from past abuse on the trail (maybe the link was already cracked)?
RickyRetardo is offline   Reply With Quote
Sponsored Links
Old 07-14-2008, 11:25 AM   #3 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
Yes. I know that under a DD street jeep with out the regular abuse of a locker and shock load this may not have happend but in my case this failed only after about 8 months, and 3000 miles. All I know is that its not worth having under there.
Action Fab is offline   Reply With Quote
Old 07-14-2008, 11:28 AM   #4 (permalink)
Registered User
 
Join Date: Jan 2005
Member # 42064
Location: JAMESTOWN,CA
Posts: 1,173
Where are the pics
__________________
Calrocs Unlimited #13-Retired:(
Team F&S


[url]www.bfgoodrichtires.com[/url]
[url]http://www.branikmotorsports.com/[/url]

CANCER SUCKS!!!
VXRICH is offline   Reply With Quote
Old 07-14-2008, 11:42 AM   #5 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
pix were the last thing on my mind.
Action Fab is offline   Reply With Quote
Old 07-14-2008, 11:43 AM   #6 (permalink)
Registered User
 
jesster's Avatar
 
Join Date: Jun 2005
Member # 49468
Location: Rogersville, TN
Posts: 1,403
What part of the Y-link broke?
jesster is offline   Reply With Quote
Old 07-14-2008, 11:44 AM   #7 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
where the two links come togerther in the middle.
Action Fab is offline   Reply With Quote
Old 07-14-2008, 11:45 AM   #8 (permalink)
Pigs Fly
 
vetteboy79's Avatar
 
Join Date: Jun 2004
Member # 31621
Location: Morganville, NJ
Posts: 6,161
Send a message via AIM to vetteboy79
There is absolutely nothing wrong with a 3-link on the street if built properly.
__________________
'94 XJ RIP, time to move on
New East Coast TTB racer in the works, trimmin' the fat...
Build Thread

Flying Pig Racing #512
vetteboy79 is offline   Reply With Quote
Old 07-14-2008, 11:46 AM   #9 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
well then I guess Full-Traction sucks...
Action Fab is offline   Reply With Quote
Old 07-14-2008, 12:06 PM   #10 (permalink)
Registered User
 
Join Date: Jan 2002
Member # 9065
Location: Charlotte, NC
Posts: 891
Send a message via AIM to madcowdungbeetle
Every coil sprung NAS Land Rover up to 1999 has a 3-link rear end... so it's not the idea of the 3-link design, but rather the execution of this particular example.

Last edited by madcowdungbeetle; 07-14-2008 at 12:07 PM.
madcowdungbeetle is offline   Reply With Quote
Old 07-14-2008, 02:21 PM   #11 (permalink)
Registered User
 
Join Date: Nov 2007
Member # 102917
Location: Denver, CO
Posts: 129
Quote:
Originally Posted by vetteboy79 View Post
There is absolutely nothing wrong with a 3-link on the street if built properly.
x2
__________________
CJ7, 4.3L vortec, 4l60, 44+ 14-bolt, Atlas 2 3.8, Maddog 39x14.50x15, BTF Armor all around
dickeypjeep is offline   Reply With Quote
Old 07-14-2008, 03:16 PM   #12 (permalink)
Registered User
 
BlueMonkey's Avatar
 
Join Date: May 2008
Member # 114389
Posts: 97
Race cars have 3links.... oh and my old 4runner it had a 3link... flexed a ton no probs on the street.
BlueMonkey is offline   Reply With Quote
Old 07-14-2008, 05:07 PM   #13 (permalink)
Registered User
 
Join Date: Jan 2006
Member # 65012
Location: Travis AFB, CA
Posts: 518
is it possible that the spool on the street caused fatigued lug studs and when they broke it caused the 3rd link to break?
__________________
To err is human. To arrrr is pirate.
Greg_Volkman is offline   Reply With Quote
Old 07-14-2008, 05:14 PM   #14 (permalink)
Registered User
 
Join Date: Sep 2006
Member # 79629
Location: Canby O.R.
Posts: 483
Quote:
Originally Posted by Greg_Volkman View Post
is it possible that the spool on the street caused fatigued lug studs and when they broke it caused the 3rd link to break?
Sorta my guess. Or your rear decided to crab walk really bad with the locker and went one way while the vehicular went the other. Something retarded like that.

Pics of aftermath on jeep?
__________________
[QUOTE=Boheefus;9710026] I breathed a huge sigh of relief. I felt like the catcher at an all anal bukkakke party.
[/QUOTE]
mopar redneck is offline   Reply With Quote
Old 07-14-2008, 06:51 PM   #15 (permalink)
Registered User
 
Join Date: May 2002
Member # 11985
Location: chi-town
Posts: 1,981
Send a message via AIM to 1TFROT
Quote:
Originally Posted by dickeypjeep View Post
x2
x3


drove a 3 link for 3+ years in the front of my s10 with 37s. had a full spool, but that was in the 9"

I'd be suprised about the spool making the studs weaker. never an issue with my 9" for the same 3 years and it was driven every day. if that was the case, you'd see wheels falling off everywhere due to lug centric 20s, 22s, etc.....

glad you're ok though. it obviously could have been much worse.
__________________
fawk this, let's go wheelin
M&M Offroad triple threat chassis #27

Last edited by 1TFROT; 07-14-2008 at 06:54 PM.
1TFROT is offline   Reply With Quote
Old 07-16-2008, 07:12 AM   #16 (permalink)
Playin with it
 
ROXROES's Avatar
 
Join Date: Aug 2007
Member # 97574
Location: Syracuse, IN
Posts: 2,313
If we could see the breakage of the 3 link, then we may be able to better diagnose the cause......................
__________________
Playin with my Willys Buggy
ROXROES is offline   Reply With Quote
Old 07-16-2008, 08:29 AM   #17 (permalink)
Rock God
 
supervert's Avatar
 
Join Date: Dec 2005
Member # 63840
Location: olivehurst
Posts: 1,114
i ran a 3 link in the back of my crew cab f-350 for over a year and a half, and it held together fine. and the upper link was even made out of

























wait for it




























wait for it






























pipe
supervert is offline   Reply With Quote
Old 07-16-2008, 09:06 AM   #18 (permalink)
Registered User
 
braxton357's Avatar
 
Join Date: Nov 2002
Member # 14685
Location: morganton/charlotte,nc
Posts: 4,697
Send a message via AIM to braxton357
You don't think there would be any carnage at highway speeds if a link on a 4 link broke? Get real. As was said, nothing wrong with a well built 3 link. You should contact full traction about it.
But why didn't you build your own?
__________________
In vino veritas

70 turbocharged 351w fastback mustang
73 linked 5.8efi Bronco
99 QCLB 4x4 twin'd cummins on meth.
braxton357 is offline   Reply With Quote
Old 07-16-2008, 11:23 AM   #19 (permalink)
Pirate4x4 Addict!
 
Myanarchy's Avatar
 
Join Date: Oct 2002
Member # 14059
Location: Memphrica
Posts: 5,519
Quote:
Originally Posted by Action Fab View Post
Yes. I know that under a DD street jeep with out the regular abuse of a locker and shock load this may not have happend but in my case this failed only after about 8 months, and 3000 miles. All I know is that its not worth having under there.
So because something on your broke they are all inferior
__________________
Jeeper89 is a bitch
Myanarchy is offline   Reply With Quote
Old 07-16-2008, 02:42 PM   #20 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
No... look I posted this tread when I was mad. Yes I know that a three link can be strong enough for a street driven rig. I believe my failure was due to material defect. IE the welds broke and allowed the treaded bung to slip out of the cross webbing. And I will most likely go back with another Y-link, but I was pissed that the failure of one link point caused such a violent wreck. I will not be building any Y-links for customers any more though... just not worth the risk!

I don’t think that full traction would do anything for me on this one and besides its not worth the trouble

I didn't build my own because I was staying short arm, had this one laying in the shop, work on everyone else’s rig 9-5 m-f, and didn't want to spend the extra time building an upper Y-link for my own rig.

Last edited by Action Fab; 07-16-2008 at 02:44 PM.
Action Fab is offline   Reply With Quote
Old 07-16-2008, 03:24 PM   #21 (permalink)
Zeus of the Sluice
 
hurleygo3's Avatar
 
Join Date: Oct 2006
Member # 80862
Location: Orange County
Posts: 4,659
You should have put a ARB in the back like your sig says and this may not have happened.
My 3 link drives great and if it does break i'm the only person to blame.
hurleygo3 is offline   Reply With Quote
Old 07-16-2008, 06:14 PM   #22 (permalink)
ORS
 
Action Fab's Avatar
 
Join Date: Aug 2006
Member # 77386
Location: Hot Springs, AR
Posts: 4,106
well I dont have ARB's front or rear... I broke the rubicon locker so I replaced it with a spool. I am running rubicon 44's
Action Fab is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 07:16 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.