death wobble - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Toyota - Land Cruiser
Notices

Reply
 
Share Thread Tools Display Modes
Old 02-02-2003, 03:32 PM   #1 (permalink)
Registered User
 
Join Date: Jul 2002
Member # 12889
Location: allentownPA
Posts: 191
death wobble

I just cant figure out this problem I have a 5 " pinicale lift 35"s and minitruck power steering i replaced my stock dampener with them one from jto and i also have a bolt on rancho but if i hit a pothole it wobbles so bad I have to almost stop please help me
FJ40Dude75 is offline   Reply With Quote
Old 02-02-2003, 05:25 PM   #2 (permalink)
Registered User
 
MD11Fr8Dog's Avatar
 
Join Date: Jun 2001
Member # 5400
Location: Southern Pines, NC
Posts: 1,751
Send a message via AIM to MD11Fr8Dog Send a message via Skype™ to MD11Fr8Dog
Re: death wobble

Quote:
Originally posted by FJ40Dude75
I just cant figure out this problem I have a 5 " pinicale lift 35"s and minitruck power steering i replaced my stock dampener with them one from jto and i also have a bolt on rancho but if i hit a pothole it wobbles so bad I have to almost stop please help me
TRE's? Is there any shackle lift? Caster Angle? Knuckle bearings?
__________________
Sean
8/75 FJ-40 - 2F, 76 DBs, SR, SOA 55 rear springs, PS, 36X12.5 TSLs, SM420/ToyBox/3spd tcase - 154:1, Mini-Longfields/Aisin hubs and front/rear ARBs.
:bounce2: [SIZE="3"][URL="http://gallery.mac.com/md11fr8dog#100070"]My Green Land Cruiser[/URL][/SIZE]:bounce:
03 Tacoma double cab, SR5, TRD, sliders, 3" Cornfed, Can-Back
TLCA #11877
MD11Fr8Dog is offline   Reply With Quote
Sponsored Links
Old 02-02-2003, 05:44 PM   #3 (permalink)
Registered User
 
Join Date: Jul 2002
Member # 12889
Location: allentownPA
Posts: 191
yes 1 inch lift shackles and 6degree shims
which i am yanking out this week cause I am a dumb a** and listened to an idiot
FJ40Dude75 is offline   Reply With Quote
Old 02-02-2003, 09:36 PM   #4 (permalink)
Registered User
 
Join Date: Nov 2002
Member # 15204
Location: Austin, Colorado
Posts: 717
wob

I had a customer bring me a rig with a similar complaint. A quick inspection revealed loose u-bolts on the front end. Check-em
proffitt'scruisers is offline   Reply With Quote
Old 02-02-2003, 10:31 PM   #5 (permalink)
Registered User
 
Join Date: Feb 2001
Member # 3259
Location: NORTHERN NM
Posts: 1,258
Send a message via AIM to FIXXXXAH
AH HEM. PLEASE STAY CALM WHILE I HIJACK THIS THREAD FOR A MOMENT. NO ON WILL BE HARMED.

NOW THEN, WHILE YOUR TALKING ABOUT UBOLTS, I DONT SUPPOSE YOU HAVE A NAPA PN FOR GOOD U BOLTS WITH ENOUGH LENGTH AND THREAD THAT YOU CAN USE THEM ON BOTH FRONT AND REAR SPRING PACKS, WITH THE EXCEPTION OF THE ONE LONG PASS SIDE ONE, DO YOU JERIMIAH?
__________________
[SIZE=1] "ANYONE WILLING TO TRADE FREEDOM FOR SECURITY DESERVES NEITHER."
TUBING AND BUGGIES ARE OVERRATED
METRIC ROCKS. [/SIZE]
FIXXXXAH is offline   Reply With Quote
Old 02-03-2003, 09:39 AM   #6 (permalink)
Registered User
 
Join Date: Nov 2002
Member # 15205
Location: Everywhere, but mainly CO.
Posts: 237
How 'bout tie rod ends ?
__________________
66' Toyota LC, 2 1/2 ton Rockwells, 4 Link, 44's, Propane...
bruter is offline   Reply With Quote
Old 02-03-2003, 09:57 AM   #7 (permalink)
Registered User
 
Join Date: May 2001
Member # 4783
Location: Orange Co. CA
Posts: 1,797
There are two factors that contribute to the death wobble:
1) excess play in anything that locates the wheel (wheel bearings, knuckle bearings, tie rod ends, steering box and linkage, U bolts, spring bushings.)
2) Alignment. Excesive toe in or toe out (this provides high side to side force). Caster too close to zero (no self centering force).

You need to eliminate both factors.
Pin Head is offline   Reply With Quote
Old 02-03-2003, 10:38 AM   #8 (permalink)
Registered User
 
Join Date: Sep 2001
Member # 6863
Location: San Diego
Posts: 2,792
Quote:
Originally posted by FIXXXXAH
AH HEM. PLEASE STAY CALM WHILE I HIJACK THIS THREAD FOR A MOMENT. NO ON WILL BE HARMED.

NOW THEN, WHILE YOUR TALKING ABOUT UBOLTS, I DONT SUPPOSE YOU HAVE A NAPA PN FOR GOOD U BOLTS WITH ENOUGH LENGTH AND THREAD THAT YOU CAN USE THEM ON BOTH FRONT AND REAR SPRING PACKS, WITH THE EXCEPTION OF THE ONE LONG PASS SIDE ONE, DO YOU JERIMIAH?
There were a few at napa that had the right dimensions but they were $9+ each!!! I just priced them out with a patient Napa guy on Friday night. That is about 160/set with tax. Nope, get a set from a spring supplier.
__________________
I have enough projects for the next decade. Need two?
cruiserbrett is offline   Reply With Quote
Old 02-03-2003, 10:42 AM   #9 (permalink)
Registered User
 
Join Date: Nov 2002
Member # 15204
Location: Austin, Colorado
Posts: 717
Quote:
. Nope, get a set from a spring supplier.
He's right...I get mine made at the spring works in Grand Junction.
They are never over $60 a set
proffitt'scruisers is offline   Reply With Quote
Old 02-03-2003, 03:36 PM   #10 (permalink)
Wait this ain't Tx..
 
TxCruzr's Avatar
 
Join Date: Jan 2002
Member # 9380
Location: Del Boca Vista, AZ
Posts: 2,199
Send a message via AIM to TxCruzr
you know how I got mine to drive smooth...no play...no wobble...no bump steer...no wandering...
Got me one of these

Joseph
Attached Images
 
__________________
"There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never care for anything else thereafter."
-Ernest Hemingway

'69 FJ-40 - under construction
TxCruzr is offline   Reply With Quote
Old 02-03-2003, 04:06 PM   #11 (permalink)
Registered User
 
Join Date: Jul 2002
Member # 12781
Location: courtenay B.C. Canada
Posts: 37
a buddy of mine had a very similar problem but in a early bronco and the shake was so bad that once it started you actually had to pull over and stop in order to get it to go away and as we tried to work our way through all the possible problems it was getting worse and worse every day to the point where it would almost rip the wheel out of your hand if you did not stop fast enough we have replaced everything except the power steering box and that is on order and we are pretty sure that this will solve the problem as we believe that whats happening is there is a worn spot in the box where it has worn through the case hardening and now is bouncing back and forth horribly anyways bla bla bla try the box and let me know thanks
fjdan is offline   Reply With Quote
Old 02-03-2003, 06:55 PM   #12 (permalink)
Registered User
 
Join Date: Dec 2000
Member # 2492
Location: Calgary, Alberta, Canada
Posts: 836
Quote:
There are two factors that contribute to the death wobble:
1) excess play in anything that locates the wheel (wheel bearings, knuckle bearings, tie rod ends, steering box and linkage, U bolts, spring bushings.)
2) Alignment. Excesive toe in or toe out (this provides high side to side force). Caster too close to zero (no self centering force).

You need to eliminate both factors.
Don't forget uneven tire wear caused by any of the above.
__________________
I've spent a lot of money on trucks and beer. . .. . the rest I wasted.
Mark '73 FJ40 is offline   Reply With Quote
Old 02-03-2003, 07:31 PM   #13 (permalink)
Registered User
 
Join Date: Sep 2002
Member # 14016
Location: GA
Posts: 4
http://www.bc4x4.com/pr/2002/ram/

your redneck ram assist
alaashul is offline   Reply With Quote
Old 02-03-2003, 08:26 PM   #14 (permalink)
Registered User
 
Join Date: Mar 2002
Member # 10478
Location: Calgary, Alberta, Canada.
Posts: 115
check caster for sure. Even if you diconnected all your steering components, your caster angle would allow you to go down the road straight, without vibration. If caster is good, then check your toe alignment. If you have a toe in or toe out, and bad kingpin bearings, you have a wobble happening.

Shaun
__________________
1997 TJ, 4" stage 2 procomp, 33's, xd9000i.
4004ever is offline   Reply With Quote
Old 02-04-2003, 01:08 AM   #15 (permalink)
Registered User
 
Join Date: Jan 2002
Member # 9669
Location: Austin, TX
Posts: 239
Quote:
Originally posted by TxCruzr
you know how I got mine to drive smooth...no play...no wobble...no bump steer...no wandering...
Got me one of these

Joseph
Not trying to hi jack this thread again or anything, but Joseph, please tell me what I am seeing on your axle?? I see a diff that looks to be flipped over, but still offset to the passenger side. The perches look to be in the proper place when installed in the original configuration, not to mention the low drain plug that would be at the right height if installed in the original configuration. Info please.. Gig'em

Darius '95
__________________
84 FJ60 SOA, SR, 35 MTRs, 4:11, 2F
92 FJ80 850J/863, 37's - Getting one tons
trd55 is offline   Reply With Quote
Old 02-04-2003, 07:05 AM   #16 (permalink)
Banned
 
ScottFJ40's Avatar
 
Join Date: Apr 2002
Member # 11268
Location: In your head
Posts: 3,719
Quote:
Originally posted by trd55


Not trying to hi jack this thread again or anything, but Joseph, please tell me what I am seeing on your axle?? I see a diff that looks to be flipped over, but still offset to the passenger side. The perches look to be in the proper place when installed in the original configuration, not to mention the low drain plug that would be at the right height if installed in the original configuration. Info please.. Gig'em

Darius '95
Hydro assist
ScottFJ40 is offline   Reply With Quote
Old 02-04-2003, 02:22 PM   #17 (permalink)
Registered User
 
Join Date: Feb 2001
Member # 3259
Location: NORTHERN NM
Posts: 1,258
Send a message via AIM to FIXXXXAH
I THINK HE IS ASKING WHY IT LOOKS LIKE THE AXLE IS SET UP SPRUNG OVER FROM THE FACTORY, NOT ABOUT THE RAM ASSIST, RIGHT?
__________________
[SIZE=1] "ANYONE WILLING TO TRADE FREEDOM FOR SECURITY DESERVES NEITHER."
TUBING AND BUGGIES ARE OVERRATED
METRIC ROCKS. [/SIZE]
FIXXXXAH is offline   Reply With Quote
Old 02-04-2003, 03:05 PM   #18 (permalink)
Registered User
 
Join Date: Jan 2002
Member # 9669
Location: Austin, TX
Posts: 239
Quote:
Originally posted by FIXXXXAH
I THINK HE IS ASKING WHY IT LOOKS LIKE THE AXLE IS SET UP SPRUNG OVER FROM THE FACTORY, NOT ABOUT THE RAM ASSIST, RIGHT?
BINGO...
__________________
84 FJ60 SOA, SR, 35 MTRs, 4:11, 2F
92 FJ80 850J/863, 37's - Getting one tons
trd55 is offline   Reply With Quote
Old 02-04-2003, 07:34 PM   #19 (permalink)
Wait this ain't Tx..
 
TxCruzr's Avatar
 
Join Date: Jan 2002
Member # 9380
Location: Del Boca Vista, AZ
Posts: 2,199
Send a message via AIM to TxCruzr
It looks like it was SOA from the factory just because the guy that did it did a very clean job.
trd55...sounds like we have another aggie on the board

Joseph
__________________
"There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never care for anything else thereafter."
-Ernest Hemingway

'69 FJ-40 - under construction
TxCruzr is offline   Reply With Quote
Old 02-04-2003, 10:47 PM   #20 (permalink)
Registered User
 
Join Date: Jan 2002
Member # 9669
Location: Austin, TX
Posts: 239
Quote:
Originally posted by TxCruzr
It looks like it was SOA from the factory just because the guy that did it did a very clean job.
trd55...sounds like we have another aggie on the board

Joseph
Howdy!!! I have lurked for awhile and slowly gathered info. Been web wheeling for most of te time. Hopefully start wheeling my 60 in a couple of weeks.

What is with the low fill plug on your diff??? SOA does look clean Had a nice touch getting all the original brackets off with out destroying them. Looks good. Maybe I'll get back to Texas in a relatively short period of time, and we can wheel together. I been gone to long. (sniff, sniff). See ya, Whoop!!!

-D
__________________
84 FJ60 SOA, SR, 35 MTRs, 4:11, 2F
92 FJ80 850J/863, 37's - Getting one tons
trd55 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 06:50 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.