Is this normal? Steering wandering all over the place. Brand new 2021 Rubicon 2 Door

rickinAZ

Well-Known Member
First Name
Rick
Joined
Jan 2, 2020
Messages
1,917
Reaction score
2,077
Location
Phoenix
Vehicle(s)
2021 Rubicon Diesel
Occupation
Retired CFO. Mayo Clinic volunteer.
Rick, I did confirm the part numbers of my lower control arms with the dealer, he was the new parts guy but he knows Jeeps and I believe he fully understood me and the issues I was having
I am waiting for a call back from the service manager to confirm it, and it is still going in next Wednesday

I don't understand why they lifted a 392 even higher and used stock length lower control arms?
Doesn't a Rubicon have the least amount of caster out of all of the JL Wranglers to begin with and by lifting it you have to be losing more caster

I still haven't found any information on my lower control arms PN 68250242AB, I don't know if this number is specific to the 392?

PN 68322798AA is definitely the Mopar lower control arm for a lifted Jeep using the Mopar lift

I ordered 2, PN 68322798 lower control arms for a Mopar lift from AllMoparParts.com and they were $31.00 each
Thanks to all that have provided part numbers, I really appreciate it
If your Rubicon is lifted any higher than a dead-stock Rubi you may want to consider adjustable LCAs. The 24.25" (Mopar lift kit LCAs) will likely not be enough. Mine is a Diesel (supposedly an 1" higher than a stock Rubicon) with a 1.5"/2.0" leveling kit. When adjusted to 24.25", my caster was 5°. At 24.375" I was just north of 6° - which is the happy place.
Advertisement

 

richk225

Well-Known Member
First Name
Rich
Joined
Jan 16, 2018
Messages
530
Reaction score
334
Location
New Jersey
Vehicle(s)
2018 Jeep Wrangler JL Unlimited Rubicon. 2017 Jeep Grand Cherokee Overland
Occupation
retired due to broken back
If your Rubicon is lifted any higher than a dead-stock Rubi you may want to consider adjustable LCAs. The 24.25" (Mopar lift kit LCAs) will likely not be enough. Mine is a Diesel (supposedly an 1" higher than a stock Rubicon) with a 1.5"/2.0" leveling kit. When adjusted to 24.25", my caster was 5°. At 24.375" I was just north of 6° - which is the happy place.
I agree with you on that, What I hope to do is install the lower control arms from the lift, and then get the caster to that 6 + degrees with the adjustable upper control arms that I already have.
I appreciate your input and I still scratch my head when I try to figure out what Jeep was thinking?
I don't think that a set of $62 (my cost) would break the bank on them building it the correct way from the start.
Question for you, what manufacture leveling kit did you use? were you able to use your stock shocks or go with shock adaptors or new shocks?
 

rickinAZ

Well-Known Member
First Name
Rick
Joined
Jan 2, 2020
Messages
1,917
Reaction score
2,077
Location
Phoenix
Vehicle(s)
2021 Rubicon Diesel
Occupation
Retired CFO. Mayo Clinic volunteer.
I agree with you on that, What I hope to do is install the lower control arms from the lift, and then get the caster to that 6 + degrees with the adjustable upper control arms that I already have.
I appreciate your input and I still scratch my head when I try to figure out what Jeep was thinking?
I don't think that a set of $62 (my cost) would break the bank on them building it the correct way from the start.
Question for you, what manufacture leveling kit did you use? were you able to use your stock shocks or go with shock adaptors or new shocks?
My shocks/springs are stock from the factory. No adapters.

Drives like a dream.
 

richk225

Well-Known Member
First Name
Rich
Joined
Jan 16, 2018
Messages
530
Reaction score
334
Location
New Jersey
Vehicle(s)
2018 Jeep Wrangler JL Unlimited Rubicon. 2017 Jeep Grand Cherokee Overland
Occupation
retired due to broken back
My shocks/springs are stock from the factory. No adapters.

Drives like a dream.
Again, I thank you, I can't wait to get them on my ride
 

richk225

Well-Known Member
First Name
Rich
Joined
Jan 16, 2018
Messages
530
Reaction score
334
Location
New Jersey
Vehicle(s)
2018 Jeep Wrangler JL Unlimited Rubicon. 2017 Jeep Grand Cherokee Overland
Occupation
retired due to broken back
My shocks/springs are stock from the factory. No adapters.

Drives like a dream.
Did you have any issues before you did the mods with the steering wheel returning back to center after making a turn? The suspension manufactures that I spoke to said that is a definite sign of not enough caster
I am going out into the garage with a magnetic angle finder to see just what mine is from the factory
 

Sarge50

Member
First Name
Joe
Joined
Dec 25, 2019
Messages
19
Reaction score
21
Location
Huntsville, AL
Vehicle(s)
2018 Wrangler unlimited Rubicon 2.0t, 2012 Ram 2500 Cummins 2008 Mazdaspeed3
Thanks for the good info. I just ordered a set of the LCAs mentioned. Question, will I need to get an alignment when I replace the stock ones?
 

hoag4147

Well-Known Member
First Name
Rick
Joined
Dec 13, 2019
Messages
2,799
Reaction score
3,476
Location
DFW, Texas
Vehicle(s)
2018 JLU Sport S / GMC 1500AT 4x4
Vehicle Showcase
1
Thanks for the good info. I just ordered a set of the LCAs mentioned. Question, will I need to get an alignment when I replace the stock ones?
Not needed
 

chadk77

Well-Known Member
First Name
Chad
Joined
Nov 27, 2018
Messages
68
Reaction score
52
Location
Austinville, VA
Vehicle(s)
2004 TJ, 2021 JLURubicon
Mine was the same when I got it brand new. Dropped the PSI in the tires and that helped. After the coils settled some it seemed to do better. The longer control arms will help as others have suggested.
 
OP
OP

Gripster

Member
First Name
Graham
Joined
Jul 18, 2021
Messages
12
Reaction score
16
Location
SoCal
Vehicle(s)
2021 Rubicon 2D
OP here. I am pleased to report that the longer LCA have made a huge improvement. I think our 2-door drives like a normal car now. I do notice it tracks perfect at higher speeds but at <50 MPH, I think it tends to wonder a bit. I assume that is the speed sensitive steering electronics messing things up. But, I would say I am now comfortable and I beleive the wife will have no concerns with the handling. I am comfortable now but was absolutely not happy on the drive home from the dealership.
 

Wbino

Well-Known Member
First Name
Walter
Joined
Mar 15, 2021
Messages
480
Reaction score
726
Location
Shore
Vehicle(s)
2021 Wrangler JL H.A. -- 1999 SLK 230
Occupation
Retired
I test drove a friends 2 door and it bounced like a ball on local roads.
My JLU is rock solid at highway speeds.
 

hoag4147

Well-Known Member
First Name
Rick
Joined
Dec 13, 2019
Messages
2,799
Reaction score
3,476
Location
DFW, Texas
Vehicle(s)
2018 JLU Sport S / GMC 1500AT 4x4
Vehicle Showcase
1
OP here. I am pleased to report that the longer LCA have made a huge improvement. I think our 2-door drives like a normal car now. I do notice it tracks perfect at higher speeds but at <50 MPH, I think it tends to wonder a bit. I assume that is the speed sensitive steering electronics messing things up. But, I would say I am now comfortable and I beleive the wife will have no concerns with the handling. I am comfortable now but was absolutely not happy on the drive home from the dealership.
Lower your tire PSI. If stock do like 32/34 you will see improvement for lower speed
 

rickinAZ

Well-Known Member
First Name
Rick
Joined
Jan 2, 2020
Messages
1,917
Reaction score
2,077
Location
Phoenix
Vehicle(s)
2021 Rubicon Diesel
Occupation
Retired CFO. Mayo Clinic volunteer.
Did you have any issues before you did the mods with the steering wheel returning back to center after making a turn? The suspension manufactures that I spoke to said that is a definite sign of not enough caster
I am going out into the garage with a magnetic angle finder to see just what mine is from the factory
Mine absolutely had the wheel not returning to center (pre-LCAs). After making a turn, the wheels were going dead straight but the steering wheel itself was slow to return to the 12:00 position. The 24 3/8" LCAs and a pass-through steering damper fixed it. In fact, I did the damper first, and that, by itself, fixed the returning-to-center issue - I was surprised.
 
Advertisement

Hothead Headliners
 
Advertisement
Top