Do I "need" rear upper control arms for 2.5"
Thread Starter
JK Enthusiast
Joined: Feb 2008
Posts: 163
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From: The Sooner State
Good to go. Don't need rear upper control arms for pinion. Front lower control arms will dial in castor so your rig isn't squirely on the freeway. Front adjustable trackbar depends on how much that axel shifts towards the driver side. I got one figuring do it right the first time.
Maybe once i get the rest of my mods done then I will look at "tweaking" some things
Next payday will be AEV correction brackets, NR grade 8 bolts, and probably some upper/lower gussets. I think at that point I should be ready to install all my suspension upgrades and hopefully be happy with the outcome.
JK Super Freak
Joined: Nov 2010
Posts: 1,186
Likes: 2
From: Vallejo, CA
Agree. The thing with those frame mounted brackets; your lifting your rig, why lower the frame?
Thread Starter
JK Enthusiast
Joined: Feb 2008
Posts: 163
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From: The Sooner State
Would getting the LCAs get everything back to spec? Will the stock UCA be out of whack using just adjustable LCAs? I thought the correction brackets would be a good alternative since it would bring both sets of CAs back down into alignment per say without having to spend a chunk of change on arms right now. Please correct me if I am wrong.
Thread Starter
JK Enthusiast
Joined: Feb 2008
Posts: 163
Likes: 0
From: The Sooner State
JK Super Freak
Joined: Nov 2010
Posts: 1,186
Likes: 2
From: Vallejo, CA
Would getting the LCAs get everything back to spec? Will the stock UCA be out of whack using just adjustable LCAs? I thought the correction brackets would be a good alternative since it would bring both sets of CAs back down into alignment per say without having to spend a chunk of change on arms right now. Please correct me if I am wrong.
The brackets lower the frame, so the ground clearance is lower. Although you will still gain break over angle.
Last edited by BlackRockBurner; Jan 24, 2013 at 12:49 PM.
JK Freak
Joined: Jan 2013
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From: Westfield
Using lower arms, the castor angle is adjustable. Using both upper and lower, castor and axel location is adjustable. The ideal solution. When we lift our Jeeps, we lose wheelbase.
The brackets lower the frame, so the ground clearance is lower. Although you will still gain break over angle.
JK Super Freak
Joined: Nov 2010
Posts: 1,186
Likes: 2
From: Vallejo, CA
All rigs react to lifts differently, glad that in your situation fixed arms worked, in others drop brackets work. Now, if one of these types of fixes places spacers on top of their springs at a later time, that may change the castor again. But with fixed arms or drop brackets, there's no way for adjustment.
JK Freak
Joined: Jan 2013
Posts: 643
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From: Westfield
All rigs react to lifts differently, glad that in your situation fixed arms worked, in others drop brackets work. Now, if one of these types of fixes places spacers on top of their springs at a later time, that may change the castor again. But with fixed arms or drop brackets, there's no way for adjustment.
JK Newbie
Joined: Sep 2012
Posts: 47
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From: United States
On that lift you should skip the arms. You don't need them with that little lift. Adj track bar is great but may not even be needed. You could use the $ elsewhere. That lift is gtg man. You will have a nice ride as is. You should install your lift and decide on the track bar. Your front axle will probable be centered and you won't need the adj track bar.
Sent from my SPH-L900 using Tapatalk 2
Sent from my SPH-L900 using Tapatalk 2
I have the TF 2.5 spring lift with Rancho 9000, and it rides fantastic. But being a newb, it would be nice to see if everything is in spec and could/could not be improved by lca or track bar.