Normal axle movement?
12-16-2013 | 10:28 AM
#42
JK Super Freak
Joined: Jan 2010
Posts: 1,467
Likes: 0
From: Torrington CT
Dirtman asked the question at the very beginning that could have answered all of this, but anyway...
This picture shows your problem clear as day. Your trackbar is raised at the axle end, and the drag link is not flipped. You have raised the roll center of your front axle without following with the steering linkage. If you raise the axle bracket 3" (which you did), flipping our drag link to the top of the knuckle will raise the drag link 3" as well.
You need to have the drag link and trackbar both parallel and in the same horizontal plane as each other, or the steering will fight body position during body roll. While the body roll you have is minimal during accel and decel, it is enough to manifest with they way your steering is set up.
Yes, raised front and stock rear will cause this as well. It will also cause the vehicle to oversteer and become very unpredicatable in corners. The effects are much worse on a 2 door than a 4 door due to the shorter wheelbase.
The limited time I had my rig set up this way, I was able to change lanes on the highway with throttle input.
I can almost gaurentee your problems will go away, for the most part. It's still a lifted vehichle, and with the short arm lift you will still have some issues with suspension geometry that you can't help when using factory brackets. Getting your steering geometry and roll centers squared away is a great help tho.
How high is your rear raised bracket?
This picture shows your problem clear as day. Your trackbar is raised at the axle end, and the drag link is not flipped. You have raised the roll center of your front axle without following with the steering linkage. If you raise the axle bracket 3" (which you did), flipping our drag link to the top of the knuckle will raise the drag link 3" as well.
You need to have the drag link and trackbar both parallel and in the same horizontal plane as each other, or the steering will fight body position during body roll. While the body roll you have is minimal during accel and decel, it is enough to manifest with they way your steering is set up.
Did you happen to raise the rear trackbar also? Or just the front?
I have seen several posts indicating that it is ok to raise the rear without raising the front --> but raising the front without raising the rear can cause issues. (though I haven't read exactly what that issue is. Maybe the directional pull on accelerating/braking you are getting?)
I have seen several posts indicating that it is ok to raise the rear without raising the front --> but raising the front without raising the rear can cause issues. (though I haven't read exactly what that issue is. Maybe the directional pull on accelerating/braking you are getting?)
The limited time I had my rig set up this way, I was able to change lanes on the highway with throttle input.
How high is your rear raised bracket?
12-16-2013 | 11:04 AM
#43
JK Super Freak
Joined: Oct 2012
Posts: 1,225
Likes: 0
From: OCEAN SPRINGS, MS
I just raised my trackbar and draglink and it was a noticeable increase in bump steer. I could imagine one being higher and the other being lower would be very unsafe.
12-27-2013 | 10:46 PM
#44
Thread Starter
JK Enthusiast
Joined: Jan 2010
Posts: 128
Likes: 0
From: Brandon, Manitoba
Put on my inverted drag link kit tonight. Drilling the knuckle was fun, finding the drill bit in town was a bit hard and the result.....heavenly bliss. Drives so much better. Its awesome now! I may have to check my alignment now but I can do that tomorrow. Thanks for input and help.
12-27-2013 | 11:52 PM
#45
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 162
From: Austin <--> Colorado Springs
But glad the parts are in and it finally drives right.
12-28-2013 | 09:08 AM
#46
Thread Starter
JK Enthusiast
Joined: Jan 2010
Posts: 128
Likes: 0
From: Brandon, Manitoba
True, but no one gave me a reason but just do it besides because you are supposed to. I like to know why you do things. It was explained above why and it made up my mind. Its all good.
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