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Adjustable upper control arms??

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Old 10-13-2018, 10:41 AM
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Default Adjustable upper control arms??

I am in the middle of rebuilding my front end. My upper control arm bushings are shot. Easiest thing to do is simply replace the bushings.

I see adjustable UCAs advertised and am open to this if they help somehow. I have a modest 3 1/2 inch lift and 31s so I don't need anything extreme.

\What is the benefit of adjustable UCAs?? What is the adjustment procedure?
Old 10-13-2018, 03:54 PM
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They make your caster more adjustable and if you get adjustable lowers you can reset your front axle location .
Old 10-14-2018, 10:49 AM
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I didn't know that the caster was adjustable at all in a stock Jeep. What would the advantage of a caster other than stock be?

The aftermarket UCAs seem a lot stronger than stock.
Old 10-14-2018, 10:55 AM
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Originally Posted by windlover
I didn't know that the caster was adjustable at all in a stock Jeep. What would the advantage of a caster other than stock be?

The aftermarket UCAs seem a lot stronger than stock.
Caster on a xj can be adjusted by using shims on the body side mount.

In a stock vehicle caster is usually affected by front end damage. On a lifted vehicle caster gets way out of whack and affects return to center for steering and driving easability.
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