Need help, installing adjustable LCA

[Eischman]

Help me understand this before I tighten the bolts on the first side!
If my stock LCA were 24" and Teraflex says for 2.5 lift that my new ones should be at 24.25" -24.35"
why does the arms go right back on, shouldn't there be some kind of struggle to get the longer arms on??
This is going on a 21 JLUR with 2.5 spacer lift and 35" tires, the caster on the stock arms were 4.7 left and 4.8 right.

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[Roky]

Help me understand this before I tighten the bolts on the first side!
If my stock LCA were 24" and Teraflex says for 2.5 lift that my new ones should be at 24.25" -24.35"
why does the arms go right back on, shouldn't there be some kind of struggle to get the longer arms on??
This is going on a 21 JLUR with 2.5 spacer lift and 35" tires, the caster on the stock arms were 4.7 left and 4.8 right.

Because the axle likely moved forward when you took stock arm out. Since your up 2.5” the oem arm pulls the axle back when lifted…..

 

[Some Random Guy]

Because the axle likely moved forward when you took stock arm out. Since your up 2.5” the oem arm pulls the axle back when lifted…..

This. Celebrate the easy win!

 

[Eischman]

Thanks Roky!
Though I'm not disappointed that I didn't have a struggle!

 

[slowcrawlerZJ]

Because the axle likely moved forward when you took stock arm out. Since your up 2.5” the oem arm pulls the axle back when lifted…..

Exactly! Well said. That’s is the usual circumstance. I have the same set up on my 2019 JLUR. I ended up adding adjustable UCA and changing my castor to 6.1 to decrease any steering wondering and steer bump.

 

[Eischman]

I'm also hoping that quarter inch is long enough to get the caster up, quarter inch don't seem like much?

 

[word302]

I'm also hoping that quarter inch is long enough to get the caster up, quarter inch don't seem like much?

I'd err closer to 3/8". You want that caster to be 6-6.5 degrees.

 

[limeade]

I'm also hoping that quarter inch is long enough to get the caster up, quarter inch don't seem like much?

Unlike other aspects of life, .25 inches will make a noticeable difference.

 

[slowcrawlerZJ]

Doesn’t seem like like much but you will be surprised at what a few 1/16’s does or a few turns on adjustables effect on the castor

 

[Roky]

I'm also hoping that quarter inch is long enough to get the caster up, quarter inch don't seem like much?

You be surprised, although the Mopar lcas are usually only effective up to 2 “. You’ll still feel a difference, but adjustable will work better for 2.5” lift. Also most of the time you get more than advertised lift height…….

 

[Eischman]

Thats why I spent the extra $100 on adjustable, I just couldn't see spending the $$ and being stuck at one length.
This way my front-end guy can dial it in exactly.

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