Lift Caster Question
Could be a combination of what WOL and GOFISH said. The axle being off center could be causing the spring to bow. The spring definately looks bowed forward to me though. This should not be a problem.
His control arms are stock. The axle did not move front to back, without a new trackbar the axle is moved too far to one side. The pics are not telling what is really happening. It doesn't matter how much you lift a coil sprung vehicle, the axle will move to one side because the track bar pulls the axle.
Unless you are saying that the coil is bowing out causing it to push out closer to the link??? Not trying to say you are incorrect, only trying to understand for my own knowledge, so if anyone would please educate me I would appreciate it. I come from an IFS world, but have dealt with a few straight axles both leaf and coil. Measuring is still a simple way to see if the axle is kicked back/forward to be certain.
Last edited by JKJoe; Apr 22, 2007 at 03:16 AM.
I am going to order the new track bar, although I am still a little confused on how it works. Once I install it, am I able to make the adjustments to get the axle back into position or do I need to take it to a shop?
Also, I had planned on ordering the Teraflex track bar unless someone can recommend a better one.
Also, I had planned on ordering the Teraflex track bar unless someone can recommend a better one.
You shouldn't have to take it to a shop. I would set it about 5/8" longer than the stock bar and measure from the frame to the axle on each side to see if it's centered. There have been a lot of positive comments on the Teraflex bar.
His control arms are stock. The axle did not move front to back, without a new trackbar the axle is moved too far to one side. The pics are not telling what is really happening. It doesn't matter how much you lift a coil sprung vehicle, the axle will move to one side because the track bar pulls the axle.
Last edited by ROKLIMO; Apr 22, 2007 at 04:08 AM.
Guys,
I have the Teraflex 2.5 BB on my 2-door. I think what we are seeing here is a function of the design of the vehicle and there's not much to do about it. There are 2 ways you can make more space between the arc of the sway bar and the coil spring - move the axle/spring buckets back or move the track bar forward. I have carefully checked my clearance at full stuff (with the bump stop mashed flat) to full droop and I can't see there being a problem with the sway bar to spring clearance. This is especially true when you consider that at ride height the clearance less than when the suspension compresses or extends (the sway bar travels in an arc toward the front of the vehicle). In any case, no amount of track bar replacement or adjustment will fix this. What's that old adage - if it ain't broke, don't fix it?
Of course a new track bar can recenter the axle and will be stronger than the stock piece.
I have the Teraflex 2.5 BB on my 2-door. I think what we are seeing here is a function of the design of the vehicle and there's not much to do about it. There are 2 ways you can make more space between the arc of the sway bar and the coil spring - move the axle/spring buckets back or move the track bar forward. I have carefully checked my clearance at full stuff (with the bump stop mashed flat) to full droop and I can't see there being a problem with the sway bar to spring clearance. This is especially true when you consider that at ride height the clearance less than when the suspension compresses or extends (the sway bar travels in an arc toward the front of the vehicle). In any case, no amount of track bar replacement or adjustment will fix this. What's that old adage - if it ain't broke, don't fix it?
Of course a new track bar can recenter the axle and will be stronger than the stock piece.
I know that. The amount it moved back is not the problem. Center the axle and it will correct the problem.
I understand how that works, but the link sits in front of the coil spring, how does moving the axle to the side make it closer to the link?
Unless you are saying that the coil is bowing out causing it to push out closer to the link??? Not trying to say you are incorrect, only trying to understand for my own knowledge, so if anyone would please educate me I would appreciate it. I come from an IFS world, but have dealt with a few straight axles both leaf and coil. Measuring is still a simple way to see if the axle is kicked back/forward to be certain.
Unless you are saying that the coil is bowing out causing it to push out closer to the link??? Not trying to say you are incorrect, only trying to understand for my own knowledge, so if anyone would please educate me I would appreciate it. I come from an IFS world, but have dealt with a few straight axles both leaf and coil. Measuring is still a simple way to see if the axle is kicked back/forward to be certain.A solid axle has a track bar. When you lift a solid axle coil spring vehicle, the track bar will pull the axle to one side. on his Jeep the spring appears to be bowed, centering the axle should fix the problem. Either way, the axle needs to be centered in the vehicle. You can't completely fix a problem unless you address everything that could be causing it. If you notice most of the lift kits for the JK address the rear axle but don't address the front. A new track bar or track bar relocation bracket should solve the problem.
Roger that. You have a valid point by starting with the track bar and if needed troubleshoot from there.


