Oh the joys of DW - Page 3 - JeepForum.com
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post #31 of 44 Old 07-12-2019, 06:29 AM
Krakken
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Originally Posted by JMZ101586 View Post
K7525 doesnt come up?
K7252 Moog

ore4x4.com/product-category/grand-cherokee-wj-1999-2004/tier-one-grand-cherokee-wj-1999-2004/


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Previously: 3 XJs & 2 Diesel KJs
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post #32 of 44 Old 07-12-2019, 10:09 AM Thread Starter
JMZ101586
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Small update...

Control arms (lower) have been shortened to adjust caster.

Still have DW.

At this point all components have been replaced, retorqued and death wobble still persists... no clue what the issue is. 4 Wheel Parts wiped their hands of it... lovely

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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post #33 of 44 Old 07-12-2019, 01:43 PM
LuthWJ77
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Man you've literally followed the book on this sucks to hear nothing has helped. Not claiming this is an easy thing to do since these cameras aren't cheap but if you have access to a gopro or similar and could mount it under there to video what's going on that might give you some insight.
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post #34 of 44 Old 07-13-2019, 10:55 AM
Krakken
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I had replaced everything too, but I used Energy Suspensions bushings in the track bar. Still had DW bad. Changing to the 7252 bushings AND snugging up the steering box fixed it.

I’d call @Kolak and pick his brain. He’s real helpful, and probably nobody else out there knows more than he does

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Previously: 3 XJs & 2 Diesel KJs
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post #35 of 44 Old 07-15-2019, 11:04 AM
Jeeples
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Quote:
Originally Posted by JMZ101586 View Post
Small update...

Control arms (lower) have been shortened to adjust caster.

But did you measure your caster angle before and after the adjustments?


Even a cheapy Harbor Freight angle finder will be invaluable here. There's a small flat on the bottom of each knuckle that can be used to measure caster with relative accuracy.
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His: '00 WJ 4.7 Limited- Some stuff

Hers: '03 WJ 4.7 Laredo- Some more stuff


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This is easily the worst post, and thread, I have ever seen in 7 years of being on JF.
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post #36 of 44 Old 07-17-2019, 07:53 AM Thread Starter
JMZ101586
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Originally Posted by Jeeples View Post
But did you measure your caster angle before and after the adjustments?


Even a cheapy Harbor Freight angle finder will be invaluable here. There's a small flat on the bottom of each knuckle that can be used to measure caster with relative accuracy.
Caster was at 7.5 degrees BEFORE reducing lower control arm length this was per the alignment print out I received from 4WD Parts

No I did not measure after adjusting, I do have an angle finder but in my move Im not sure if I left it at my parents house because I cant find it. I did shorten them 3 full turns which I feel was substantial in at least seeing if any improvement was noted, however there was none, death wobble occurred at the same double rut.

For ****s I bought a moog track bar. Drilled it out for 9/16s and threw it in. Hilarious to see the amount of "play" in it vs the JKS with KOR bushings but I figured what the hell... well on the way to work today hit the double rut, I had the worst case of death wobble Ive ever experienced in it... so bad and violent you could hear the tires scrubbing as they went back and forth... clearly the JKS bar is going back in tonight...

About the only positive was I did drive a WK2 Hemi yesterday... Loved it... but I really love my WJ and wish to fix this but Im pretty much losing hope.

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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post #37 of 44 Old 07-17-2019, 08:19 AM Thread Starter
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Heres some pics I shot for another group trying to help as well not sure if they do any good. It has the front skid so its difficult to get good shots.


http://i63.tinypic.com/2ce5d6r.jpg
http://i66.tinypic.com/972kqo.jpg

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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post #38 of 44 Old 07-17-2019, 10:37 AM
Mofugly13
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I'm beating the crap out of the dead horse..

Get a monotube stabilizer...

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post #39 of 44 Old 07-17-2019, 11:01 AM
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Originally Posted by JMZ101586 View Post
Caster was at 7.5 degrees BEFORE reducing lower control arm length this was per the alignment print out I received from 4WD Parts

No I did not measure after adjusting, I do have an angle finder but in my move Im not sure if I left it at my parents house because I cant find it. I did shorten them 3 full turns which I feel was substantial in at least seeing if any improvement was noted, however there was none, death wobble occurred at the same double rut.

OK.


I did a little digging on the net and found a .PDF from IRO that states that 3 turns equals roughly 2* of adjustment. This was buried in their 3 link LA install directions.



Assuming the thread pitch on the control arms used in the 3 link kit are the same as their short arms, you would have likely knocked your caster down into the 5.5* range, which would be just outside the stock caster range IIRC.


You may need to shorten the arms another turn or two before seeing the desired results.

His: '00 WJ 4.7 Limited- Some stuff

Hers: '03 WJ 4.7 Laredo- Some more stuff


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Quote:
Originally Posted by Jeeples
This is easily the worst post, and thread, I have ever seen in 7 years of being on JF.
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post #40 of 44 Old 07-17-2019, 02:01 PM Thread Starter
JMZ101586
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Originally Posted by Mofugly13 View Post
I'm beating the crap out of the dead horse..

Get a monotube stabilizer...

Sent from my SM-G960U using Tapatalk
Sorry Mofugly

I did email Moog since I could find no information and per them the SSD-107 is in fact a monotube (non twin tube) design.

All the same I did just order it off amazon. What the hell worth a shot. I also bought a new core 4x4 track bar too...

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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post #41 of 44 Old 07-17-2019, 02:02 PM Thread Starter
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Quote:
Originally Posted by Jeeples View Post
OK.


I did a little digging on the net and found a .PDF from IRO that states that 3 turns equals roughly 2* of adjustment. This was buried in their 3 link LA install directions.



Assuming the thread pitch on the control arms used in the 3 link kit are the same as their short arms, you would have likely knocked your caster down into the 5.5* range, which would be just outside the stock caster range IIRC.


You may need to shorten the arms another turn or two before seeing the desired results.
Jeeples,

I have zero issues shortening them more. Just a question, shouldnt some improvement of been noted if this in fact was the correct action to be taken? As of yet nothing seems to change it other than making it 1000x worse when it happens running a stock rubber bushing track bar.

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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post #42 of 44 Old 07-17-2019, 03:42 PM
Jeeples
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Quote:
Originally Posted by JMZ101586 View Post
Jeeples,

I have zero issues shortening them more. Just a question, shouldnt some improvement of been noted if this in fact was the correct action to be taken? As of yet nothing seems to change it other than making it 1000x worse when it happens running a stock rubber bushing track bar.

Yeah, generally do you see some improvement. In a couple of local WJ's that I've helped work through it we could see some improvement the closer we worked to the 'sweet spot' of adjustments.


Don't forget that as you adjust your caster you need to, at the very least, be measuring your toe-in to ensure you're still within spec. With the big 2* adjustment you just made your toe could be out of range.


It's a freebie and only costs you a little time, just keep count of the turns/adjustments you make and you can revert back to the post-alignment settings.

His: '00 WJ 4.7 Limited- Some stuff

Hers: '03 WJ 4.7 Laredo- Some more stuff


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Quote:
Originally Posted by Jeeples
This is easily the worst post, and thread, I have ever seen in 7 years of being on JF.
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post #43 of 44 Old 08-03-2019, 08:02 AM
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Hows the DW situation?

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post #44 of 44 Old 08-05-2019, 09:19 AM Thread Starter
JMZ101586
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Originally Posted by Mofugly13 View Post
Hows the DW situation?

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I threw a final barrage of "fixes" at it

New Core 4x4 track bar set for 9/16 hardware with Johnny joint (beefer than my JKS but hits the diff on dips in the road which I guess Ill have to live with)
Bilstein Steering Stabilizer as recommended here
Had my 245/70/16s spun balanced (currently on it) and my 265/65/17s road force balanced (haven't put them on yet)

Once that was done I have to say as of yet I have been dw free. Not to say its "fixed" since unfortunately I found no glaring cause of it to say I have fixed it, all I can say is it hasn't wobbled since. Wife still wont drive it, not that I blame her.

Stable:
04 WJ Special Edition 4.7
98 Camaro SLP SS with LS2 swap
05 STS4 4.6 Northstar AWD
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