How many control arms does a Jeep TJ have?
Stock, there are four contol arms to each axle: two passenger side (upper and lower) and two driver side (upper and lower). the control arms pivot at both mounting ends (axle and frame) and allow the axle to move up and down and at the same time prevent forward and backward movement.
What do control arms do Jeep TJ?
Control Arms are one of the most common parts that get beefed up on a Jeep, especially when you’ve lifted it, or plan to really put it to work on the trails… Their primary function is to control the up and down movement of the suspension when you’re on the roads or driving over terrain.
Do you need new control arms for a 2.5 inch lift Jeep TJ?
When putting a 2.5 inch lift on a Jeep Wrangler it is wise to replace the control arms. Without this modification, the strut and the control arm could rub against each other while driving leading to serious damage. New control arms may require some other modifications as well.
How do you reinstall control arms on a Jeep Wrangler?
When reinstalling, always put the bolt in the axle end of the arm first and loosely thread the nut on. Then attach your come-along or ratchet strap directly to that bolt and the other end to your bumper or center skid depending on which way the arm has to move to line the holes up.
How tall are the control arms on a Jeep Wrangler?
Even with an entry level lift kit advertised at 2.5”, the estimated lift height could actually be closer to 4” for a stock Jeep. With a stock control arm system, your caster angle could decrease and your alignment will slowly be tweaked.
How does axle wrap work on a Jeep Wrangler?
Decreasing your caster angle will result in tighter steering, but restricted wheel self-centering. A positive caster angle will improve stability at high speeds and improve cornering. “Axle wrap” is defined as a change in your pinion angle. Axle wrap occurs when your axle wraps itself around the springs.
What does a positive caster angle do for a Jeep Wrangler?
A positive caster angle will improve stability at high speeds and improve cornering. “Axle wrap” is defined as a change in your pinion angle. Axle wrap occurs when your axle wraps itself around the springs. This is a common phenomenon in leaf sprung vehicles and can occur at heavy wheeling or towing.
What are the control arms on a Jeep Wrangler?
Jeep Wrangler TJ 1997-2006: These have virtually the same arms as the Jeep Grand Cherokee ZJ. Jeep Grand Cherokee WJ 1999-2004: This has front uppers and front lower control arms and a rear lower control arm that most people make an aftermarket replacement for.
How do you change the arms on a Jeep Cherokee?
Use a 21mm socket and wrench to remove the two bolts holding in the lower control arm. One bolt at the bottom and one at the top. Once the stock control arm was out we got our new lower arms and made them the exact same length. Since this Jeep has a 2.5 inch lift the only arms we will make longer are the rear uppers which ill explain later.
How to install control arms and set Wrangler rear pinion?
Now to remove the upper control arms, again one side at a time. You will use a15mm socket to remove both the bolts holding in the upper arms. Once the first upper arm is out we again made the uppers the same length as the stock ones. Install the new upper arm and repeat on the other side.
How do you remove the lower control arm?
We found it easiest to do one control arm at a time and we started with the front lower arms first. We put a jack stand for auto lifts under the axle to support the axle and allow minimal movement once the arms are removed. Use a 21mm socket and wrench to remove the two bolts holding in the lower control arm.