Thrumming Noise at Highway Speeds (63-67ish)

JeepJohn

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I have this issue but it seems to have went away.
I have split my rubicon fenders, used the AAL light kit and fender hardware, Artec inner fender liners, new rims and tires and reprogrammed with a Tazer for the new tire size.
I did the fender split first and liners and still had the thrumming noise, new rims and it was less noticeable, with the new tires it has completely went away. I would be willing to bet it’s a rim and tire issue.
.. I guess we’re back to the wheels/tires. Out of curiosity, what wheel tire combo/size did you go with?





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Gcodejedi

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Anyone having this issue try retorquing your wheels to 90ftlb. I think the factory 130ftlb spec is causing the factory wheels to warp and thrum.
 

Yamoo1

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Update..
Took to dealer for 5k service. Tokd them still vibrating. They rotated wheels and balanced the tires..
They said it was gone. I picked it up. The first day it was barely there I was like I can hardly tell .the next day it is back not as bad as was but for sure there. My wife calls them. The guys treats her like an idiot. He said when u put bigger offroad tires on there you will have vibration. She said this is stock have not done anything to it . then he's like that is just what rubicons do. She told the guy this isn't first jeep. And we know the gremlins of a jeep.she told him that it's scary to ride in and don't feel safe letting our daughter ride in. Then he said your being dramatic!!!
I have another appointment for Monday if they don't fix then then I'm going to start the process of lemon law.
Very upset over this. Jeep doesn't care about its owners
 

Crawldad

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i'm sorry if you are upset bro. my experience: i've never been in a quiet wrangler
 

Yamoo1

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i'm sorry if you are upset bro. my experience: i've never been in a quiet wrangler
I know the normal sounds and quirks being my third. But this vibration is not normal
 

Gcodejedi

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Has yours stopped thrumming after going with 90ftlbs?
The thrumming was significantly reduced for me after reducing lug nut torque. I'd say 90-95% better. Thrumming in the 50mph and 70mph range is completely gone and at ~64-68mph I can just barely feel it but even then sometimes I don't notice it all anymore.

Still not a 100% solution but much easier to live with on the hwy.
 

JeepJohn

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The thrumming was significantly reduced for me after reducing lug nut torque. I'd say 90-95% better. Thrumming in the 50mph and 70mph range is completely gone and at ~64-68mph I can just barely feel it but even then sometimes I don't notice it all anymore.

Still not a 100% solution but much easier to live with on the hwy.

Did you reduce it to 90ftlbs or less than that?
 

Yamoo1

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I seen in an early jl thread a couple people rotated their pinion flange 180 degrees on the shaft and took care of
 

Gcodejedi

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I seen in an early jl thread a couple people rotated their pinion flange 180 degrees on the shaft and took care of
Someone had success doing that early in this thread as well. I didn't have success with it. Over about a month, I clocked my drive shaft in all 8 positions at the pinion and tailshaft and didn't notice a difference. It's easy enough to be worth a shot tho if you haven't tried it.
 

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