lifts and adjustable control arms?
#1
JK Enthusiast
Thread Starter
lifts and adjustable control arms?
question:
why do some lifts come with adjustable controls and other don't? Looked at a 3" BDS lift, doesn't have them, but other 3" lifts do... same with 2.5" BB's - i've seen some with adjustable control arms and some without.
never installed a lift before, and I've been debating what to get. But I'd like to understand this more.
I got a quote for a 3" BDS lift... which didn't include the adjustable control arms. I was told I didn't need them. actually was told i didn't need an adjustable track bar either.
been considering:
2.5" Rock Krawler BB
2.5" TF BB
3" BDS suspension lift
RC 2.5" BB
so many options... confusing...
why do some lifts come with adjustable controls and other don't? Looked at a 3" BDS lift, doesn't have them, but other 3" lifts do... same with 2.5" BB's - i've seen some with adjustable control arms and some without.
never installed a lift before, and I've been debating what to get. But I'd like to understand this more.
I got a quote for a 3" BDS lift... which didn't include the adjustable control arms. I was told I didn't need them. actually was told i didn't need an adjustable track bar either.
been considering:
2.5" Rock Krawler BB
2.5" TF BB
3" BDS suspension lift
RC 2.5" BB
so many options... confusing...
#2
JK Super Freak
Basically as I understand this, the kits that don't have control arms probably use a cam bolt to adjust castor. IMO, control arms are the better way to adjust castor. Cam bolts can come loose and move. An adjustable track bar is recommended also. You need this to center your axle once you lift your vehicle. I bought a kit that did not have control arms or adj track bar and I ended up buying them on top of the lift I bought. The more expensive kits are more money but they are more complete. If you go with the lesser kit, you can probabley get by if you don't wheel all that much but once you start hitting more difficult trails, you start to figure out what additional parts you need and how incomplete the kit really is.
#3
JK Jedi Master
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why do some lifts come with adjustable controls and other don't?
People that don't have a clue see a 5" lift for $300, or a 3" lift for $1500, and automatically choose based on the awesome deal they get...
#4
JK Enthusiast
Thread Starter
makes sense... I forgot about cam bolts. I'd rather have a more complete kit. I'd rather sacrifice on height for a more complete and sound lift.
thanks...
thanks...
#7
Yes, it can be.
The longer control arms are to place the axle/tire back in the center of the wheel well. Once you increase the spring height the distance between both axles shorten. The correct length CAs put the wheelbase back to the correct length. In addition, if one pair of CAs per axle are adjustable then, you can also adjust the caster of the axle.
Concerning the track bars....
In the front, if you increase the suspension height the factory length trac bar will pull the axle toward the drivers side. This can be corrected by brackets or a longer bar. Brackets have a bad name for breaking on the front.
In the rear, if you increase the suspension height the factory length trac bar will pull the axle toward the passenger side. This can be corrected by a bracket or longer trac bar. A bracket works well in the rear if it is secured to the axle tube and not the factory bracket alone.
The operative word here is NEED. You do not need the adjustments to roll down the road. However, you do need the adjustments to have the axles in the correct positions.
Edit: To give you a visual. If you raise your JK with 3" of suspension lift and keep the factory CAs and track bars..... You ever seen a dog running and it looks like he is sideways? Well, that is how you will be going down the road.
The longer control arms are to place the axle/tire back in the center of the wheel well. Once you increase the spring height the distance between both axles shorten. The correct length CAs put the wheelbase back to the correct length. In addition, if one pair of CAs per axle are adjustable then, you can also adjust the caster of the axle.
Concerning the track bars....
In the front, if you increase the suspension height the factory length trac bar will pull the axle toward the drivers side. This can be corrected by brackets or a longer bar. Brackets have a bad name for breaking on the front.
In the rear, if you increase the suspension height the factory length trac bar will pull the axle toward the passenger side. This can be corrected by a bracket or longer trac bar. A bracket works well in the rear if it is secured to the axle tube and not the factory bracket alone.
The operative word here is NEED. You do not need the adjustments to roll down the road. However, you do need the adjustments to have the axles in the correct positions.
Edit: To give you a visual. If you raise your JK with 3" of suspension lift and keep the factory CAs and track bars..... You ever seen a dog running and it looks like he is sideways? Well, that is how you will be going down the road.
Last edited by toymaster; 02-08-2011 at 02:56 AM.
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#8
JK Super Freak
question:
why do some lifts come with adjustable controls and other don't? Looked at a 3" BDS lift, doesn't have them, but other 3" lifts do... same with 2.5" BB's - i've seen some with adjustable control arms and some without.
never installed a lift before, and I've been debating what to get. But I'd like to understand this more.
I got a quote for a 3" BDS lift... which didn't include the adjustable control arms. I was told I didn't need them. actually was told i didn't need an adjustable track bar either.
been considering:
2.5" Rock Krawler BB
2.5" TF BB
3" BDS suspension lift
RC 2.5" BB
so many options... confusing...
why do some lifts come with adjustable controls and other don't? Looked at a 3" BDS lift, doesn't have them, but other 3" lifts do... same with 2.5" BB's - i've seen some with adjustable control arms and some without.
never installed a lift before, and I've been debating what to get. But I'd like to understand this more.
I got a quote for a 3" BDS lift... which didn't include the adjustable control arms. I was told I didn't need them. actually was told i didn't need an adjustable track bar either.
been considering:
2.5" Rock Krawler BB
2.5" TF BB
3" BDS suspension lift
RC 2.5" BB
so many options... confusing...
Last edited by wazooz2424; 02-08-2011 at 05:57 AM.
#9
JK-Forum Founder
Join Date: Jul 2006
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a track bar bracket secured to the axle tube WILL RAISE your track bar and, on a 4" lift, this will help improve your handling or roll center. please note that you MUST install a dropped pitman arm or drag link flip at the same time as failure to do this would put your track bar and draglink at uneven angles and this will CAUSE handling issues. an adjustable track bar alone will only help you to recenter your axle and, for a 3" lift or lower, it's all you really need.
#10
If you buy the adj track bars and control arms after the fact, are they hard to install? I have a 4" Pro Comp stage 1 kit, no new track bars or control arms. Dave at NR recommended adj track bars for Front and rear and adj front lower control arms. I am not a weekly wheeler and this is my dd. I am wondering if I should install these bars and arms when i put the lift on and do it in one shot?? Any links to some good videos or write ups on installing a lift? I am going to venture to do it myself.