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more lift


 
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flyerjib
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Joined: 29 Jun 2005
Location: Tampa, FL

PostPosted: Wed May 16, 2007 6:32 am    Post subject: more lift Reply with quote

I have a 97 tj with a rough country 6" lift. I'm getting 2" coil spacers froma buddy and wanted to know if/how much I should lengthen my control arms to accomodate the extra 2" and if there is anything else I should be on the look out for. Thanks!
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'97 TJ
6" X-Series lift from Rough country
35" Mickey Thompson Baja Claws
Custom bumpers
Ramsey Winch
Herculiner interior
Neoprene seat covers
Dana 44s front and rear w/ air lockers and hub conversion+much, much more... OlllllllO
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blktrax
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Joined: 01 May 2007

PostPosted: Wed May 16, 2007 9:56 am    Post subject: Reply with quote

Its not the length, its the angle. Even by making the control arms longer your drive shafts are getting shorter and at a stronger pinion angle. Plus you're going to run to the end gusset on the front axle control arm connection point. Basicaly the control arm will hit that plate under the shock and not allow it to Lift/Droop any more than about where you are now. I would only suggest the fronts if youre trying to compensate for the weight of onboard air or a winch to level the tj out. Otherwise start looking for a long arm kit.
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flyerjib
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Joined: 29 Jun 2005
Location: Tampa, FL

PostPosted: Thu May 17, 2007 7:00 am    Post subject: Reply with quote

I completely understand and see what you are talking about. I'm just wondering if you know this from experience?

On the long arm note... anyone know of a good kit to convert only the lower control arms from short to long. I guess it would basically consist of the front and rear lower control arms and a mounting point (new trans/transfer case skid plate)?!
_________________
'97 TJ
6" X-Series lift from Rough country
35" Mickey Thompson Baja Claws
Custom bumpers
Ramsey Winch
Herculiner interior
Neoprene seat covers
Dana 44s front and rear w/ air lockers and hub conversion+much, much more... OlllllllO
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blktrax
Member


Joined: 01 May 2007

PostPosted: Thu May 17, 2007 9:41 am    Post subject: Reply with quote

Yes from experience, I helped install a 4in full traction kit, and used JKS Quicker diconnects. The shocks used were for a 6in. kit, not for the 4in. (owners decision not mine) and what happend was at full flex doing some rock crawling, the control arm wouln't allow the axle to droop fully resululting in a 3wheel experience for the owner. No lockers = no move. We later found on the way home; the way the front end was tweaked on the rocks, By being fully compressed on the passenger side and completly extended on the driver side and turned to the right; the shock didnt stop the axle travel like it should have. Resulting in the control arm being bent (twisted) slightly, resulting in an alignment issue till the lower driver side control arm was replaced. This may be an extreme case, but it did occur, the top the exterior of the control arm isnt intended to take load forces on the outer casing, espically with that sharp edge of the control arm/shock mount bracket.

Also this may help the situation for not going to a long arm kit, but I would suggest contacting the people at Full traction to see if they would recommend using these control arms

http://www.full-traction.com/detail.php?MODELID=21&MAKEID=1&TYPEID=2&PRODUCTID=194&NOTES=

of the two kits i've help install, i've had no issues with Full Traction stuff. and i plan on getting the 3in kit for my 97 TJ
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ehirner
Moderator
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Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Thu May 17, 2007 5:14 pm    Post subject: Reply with quote

flyerjib wrote:
On the long arm note... anyone know of a good kit to convert only the lower control arms from short to long.

You don't really want to do that. The UCAs and LCAs should be the same length to have proper suspension geometry. Running short uppers with long lowers causes pinion angle changes when the suspension articulates. The pinion will raise when the axle drops and lower when the axle is stuffed.
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jgilly29
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Joined: 04 May 2006
Location: Tampa, FL

PostPosted: Thu May 17, 2007 6:20 pm    Post subject: more lift Reply with quote

Personally I think you are silly for considering that. Why don't we just use my spacers you would use on your Jeep and sell them on Ebay.

jg
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