Mopar LCA swap

[AnnDee4444]

Now that just seems silly to revise the alignment requirements just so you can make spec....I wish I could do that at work haha. I understand it's a cost saving thing, but I would also think they would be concerned with making it right.
Do you know the caster angle on the sport and Sahara?
So you put the Mopar lift on yours but didn't change the LCA's? What is your caster angle?

I have OEM Rubicon suspension with the Mopar Lower control arms, and caster is right around 6°.


JL Alignment specs: https://www.jlwranglerforums.com/fo...heel-alignment-specs-toe-caster-camber.17832/

FWIW, here are the specs of other Jeeps with straight front axles (all around 7° of caster):

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[AnnDee4444]

Is there a means to measure caster without taking it to an alignment shop?

You see the two holes on either side of the diff cover. Measure that.

 

[Tfom]

Has anyone found the lca with free shipping lately. AllMoparparts is charging $30 for shipping

 

[AnnDee4444]

Has anyone found the lca with free shipping lately. AllMoparparts is charging $30 for shipping

Try Jegs.com

 

[JimmyDoom]

Has anyone found the lca with free shipping lately. AllMoparparts is charging $30 for shipping

Use promo code FS2020 on that site and you'll get free shipping. I just ordered some yesterday

 

[Tfom]

Use promo code FS2020 on that site and you'll get free shipping. I just ordered some yesterday

That did it. Thank you.

 

[Stickerhead]

I went and picked mine up. They are in Dallas!

 

[mischman]

SO i ordered mine Monday, they cancelled the order and said they were out of stock nationwide. I talked to a buddy whos a mechanic at a dealer, he talked to someone at Jeep that confirmed they are back ordered nation wide.

 

[RagTopDeluxe]

Bummer on the back order! Mine arrived yesterday (ordered on 5/21). As I posted in another thread, I’m having them installed Thursday and I’ll report back my observations.

 

[oceanblue2019]

Call East Coast Mopar parts in Waldorf MD. They have them in stock. Just picked up 2 pairs.

 

[JimmyDoom]

I'm running a stock Rubicon with no additional lift and 35" tires. my casters are currently at 4.0. What should they be at? I've heard everywhere from 5.0 to 6.5. I ordered the Mopar lift kit LCA's but I also heard those will only give me 1 degree more....so that would put me at 5.0. Is that good enough, or should I get adjustable ones so I can go more?

 

[californiajeeping]

I'm running a stock Rubicon with no additional lift and 35" tires. my casters are currently at 4.0. What should they be at? I've heard everywhere from 5.0 to 6.5. I ordered the Mopar lift kit LCA's but I also heard those will only give me 1 degree more....so that would put me at 5.0. Is that good enough, or should I get adjustable ones so I can go more?

Rubicon factory caster specs are 4.80 +/- 1.0. The only way to know if the longer LCAs will work or not is to try it. 5.0 might work, depending on other geometry factors. You have to factor in pinion angle and you don't want to push out caster too far. If it were me, I'd try the Mopar lift kit LCAs first, then make a decision later. If you use aftermarket adjustable LCAs, and you have another related issue, your dealership could easily say you voided warranty. There are many examples of dealerships denying warranty in this and other threads.

Alignment specs: https://www.jlwranglerforums.com/fo...heel-alignment-specs-toe-caster-camber.17832/

 

[oceanblue2019]

I'm running a stock Rubicon with no additional lift and 35" tires. my casters are currently at 4.0. What should they be at? I've heard everywhere from 5.0 to 6.5. I ordered the Mopar lift kit LCA's but I also heard those will only give me 1 degree more....so that would put me at 5.0. Is that good enough, or should I get adjustable ones so I can go more?

The mopar LCA’s got me about 2 degrees on a similar JLUR and put me right at 6 degrees.

 

[Stickerhead]

Mine is on a 2” RE spacer lift and Mopar LCA and it is at roughly 6

 

[californiajeeping]

I was told that the longer control arms are now standard on some of the newer 2019 JLs (started somewhere in the middle of the 2019 production run). Can anyone confirm?

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