Mopar LCA swap

[jmcdtucson]

So just to see if this is an issue remedy for me or I'm I just paranoid? First time jeep owner. I have a 2021 2 door Rubicon. Drives fine up to 50-60 mph. Steering isn't as tight as other vehicles I've had before. at 65 mph and up it's almost scary to drive as the steering wheel has about 1" to left and 1" to right of play before it actually responds. So at interstate speeds it's like I'm always correcting and recorrecting as the road turns. I can actually wiggle the wheel left and right and it doesn't turn. Is that normal or will the LCA improve, or remove what I'm experiencing?

Do you have the new cast iron steering box? There's no excuse for 1" of play either direction.
That said, the longer LCAs should help.

Sponsored

 

[JayJay]

So just to see if this is an issue remedy for me or I'm I just paranoid? First time jeep owner. I have a 2021 2 door Rubicon. Drives fine up to 50-60 mph. Steering isn't as tight as other vehicles I've had before. at 65 mph and up it's almost scary to drive as the steering wheel has about 1" to left and 1" to right of play before it actually responds. So at interstate speeds it's like I'm always correcting and recorrecting as the road turns. I can actually wiggle the wheel left and right and it doesn't turn. Is that normal or will the LCA improve, or remove what I'm experiencing?

As Guy said, the longer control arms will make the jeep track straighter but they won't do anything to remove the slop in the steering. It's unfortunate that you're having that problem with a '21 model since they already have the updated steering box. After changing to the Mopar arms and new steering box my '20 two door steers as nicely as our F150.

Later,
Johnny

 

[BasherXt]

Do you have the new cast iron steering box? There's no excuse for 1" of play either direction.
That said, the longer LCAs should help.

If this is typical that's fine. I have the new cast box. Not my video but this is what I also experience. play in wheel uploaded by @Halstem1

 

[txj2go]

If this is typical that's fine. I have the new cast box. Not my video but this is what I also experience. play in wheel uploaded by @Halstem1

How long have you been driving the Jeep?
My CTS has tight steering with a fast ratio. Even going from it to my wife's GMC Acadia I would notice a big difference, so then going to my 2018 JLU there was an even bigger difference. But I eventually got used to it and it's not a problem. Driving around town it's fine, at the speed limit on interstates it do seem to have a little bit of play. After you've driven it a month if it still seems excessive then I would go back to the dealer and at least have them compare to others on their lot.

 

[treoguy]

This is a long and useful thread. I had been considering a Mopar 2-inch lift, but got cold feet after reading a few bad stories about the ride after the upgrade. Plus, it would mean all new tires and wheels. Plan B is to embrace my Rubicon take-off wheels with KO2s and continue the transformation of my Sahara..

If I've researched this thread correctly, most people are recommending the Rubicon shocks, springs, Teraflex 0.5 spacers and the Mopar LCAs (s)?

Any benefit to having the dealership install (warranty) or can I go to my local shop? Estimated cost around $400?

 

[blnewt]

This is a long and useful thread. I had been considering a Mopar 2-inch lift, but got cold feet after reading a few bad stories about the ride after the upgrade. Plus, it would mean all new tires and wheels. Plan B is to embrace my Rubicon take-off wheels with KO2s and continue the transformation of my Sahara..

If I've researched this thread correctly, most people are recommending the Rubicon shocks, springs, Teraflex 0.5 spacers and the Mopar LCAs (s)?

Any benefit to having the dealership install (warranty) or can I go to my local shop? Estimated cost around $400?

Dealership probably won't install since those parts aren't factory on your Sahara.
Here's my install thread (and the LCA install is post #4) just to give you an idea of what's involved. If you have a buddy w/ tools that can help it's a pretty simple DIY.
https://www.jlwranglerforums.com/forum/threads/rubicon-suspension-on-2-door-sport.40700/

 

[ArmannB]

Is the steering supposed to track dead straight after the LCA swap or just improve the steering but it'll "still be a jeep"?

I swapped the LCA but my alignment was off before I did it. After the alignment was complete I still notice some wandering. I've only had the jeep for a few months, half of which with bad alignment, so I don't have a good reference point to what it was brand new.

 

[Category5Bronado]

Is the steering supposed to track dead straight after the LCA swap or just improve the steering but it'll "still be a jeep"?

I swapped the LCA but my alignment was off before I did it. After the alignment was complete I still notice some wandering. I've only had the jeep for a few months, half of which with bad alignment, so I don't have a good reference point to what it was brand new.

Is your jeep modded?

 

[ArmannB]

Is your jeep modded?

No completely stock rubicon

 

[rickinAZ]

Is the steering supposed to track dead straight after the LCA swap or just improve the steering but it'll "still be a jeep"?

I swapped the LCA but my alignment was off before I did it. After the alignment was complete I still notice some wandering. I've only had the jeep for a few months, half of which with bad alignment, so I don't have a good reference point to what it was brand new.

If your Jeep is lifted, 24.25" may not be enough. Also, it defies everything I've ever heard, but a high quality, pass-through steering damper (along with adjustable front LCAs) cured my steering.

Edit: just read that you have a stock height Rubi. The Mopar LCAs should be long enough. Seriously, try a good damper. I've been death on them for years, but it worked for me.

 

[Category5Bronado]

No completely stock rubicon

Why was your alignment off before? There may be something damaged

 

[ArmannB]

Why was your alignment off before? There may be something damaged

Some relatively light off roading, wouldn't imagine any damage to happen

 

[jmcdtucson]

Some relatively light off roading, wouldn't imagine any damage to happen

What was off on your alignment? Toe and steering wheel alignment is all that's adjustable.

 

[ArmannB]

What was off on your alignment? Toe and steering wheel alignment is all that's adjustable.

That’s what needed adjusting. Not sure why a caster reading wasn’t given

 

[jmcdtucson]

That’s what needed adjusting. Not sure why a caster reading wasn’t given

So Toe and steering wheel alignment. Makes sense! Too bad they didn't give you a caster reading.

Sponsored