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Vibration after installing 2.5” lift

vin94200

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Jun 22, 2021
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4
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RI
Installed a 2 1/2 inch on jeep tj, before i did the jeep ran fine now im getting vibration . i thought it was suppose go smooth with no changes because its only 2 /12 inch. guess that bull. Ineed some help !!!
 

Rob L.

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May 7, 2021
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Tennessee
Same thing happened to me. You need to drop your transfer case about 1".

I matched the bolt thread at Home Depot but got 1" longer and used two nuts as spacers between the frame and skid.

You could buy a TC drop kit but this is cheaper and quicker. I'm putting a SYE on soon so I didn't care about getting something cleaner
 

06lj

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Jul 14, 2018
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Arizona
Have you measured the springs to see how much actual lift you got? Advertised lift height is often not what you get. Easy fix is a transfer case drop or motor mount lift. I'd personally lean towards the motor lift as I feel lowering the pan looks bad and defeats half the clearance gains you made with the lift.
 
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CharlesHS

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Jacksonville, FL, Quezon Philippines
After installing a ProComp 2" lift on my '01 Sport I also had driveline vibrations which required me to install a TC drop of 1".

The SYE really is the proper resolution to the vibrations, but the SYE kit and driveshaft will cost $400-800 and that doesn't include $500-800 in labor ( depends upon local labor rates ) IF you cannot do the work yourself...

IF you decide to install the MML; check the cooling fan blade shroud clearance after you installed the motor mounts.
 

CodaMan

California Escapee
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Mar 9, 2017
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Dover, Arkansas
It just goes to show that every Jeep is different. I've lifted both my Jeeps 2.5" (1 Rubicon, 1 Sahara) and never had any vibes. All control arms and driveshafts were stock.
 
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Rubicon88

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Sep 24, 2020
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Western PA....Altoona area to be exact.
Some springs are not the advertised 2.5"
Condition/age/mileage of your u-joints are?
We've installed several 2.5" springs (legit 2.5") and if the u-joints are good or replaced with new no issues.
Did you get different tires with the lift?

On a side note were you installing just for a look or off road function. If for off roading did you get swar bar disconnects for your new lift height?
 
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vin94200

New Member
Joined
Jun 22, 2021
Messages
4
Location
RI
Some springs are not the advertised 2.5"
Condition/age/mileage of your u-joints are?
We've installed several 2.5" springs (legit 2.5") and if the u-joints are good or replaced with new no issues.
Did you get different tires with the lift?

On a side note were you installing just for a look or off road function. If for off roading did you get swar bar disconnects for your new lift height?
No i have p 225 still 15 inch im going this week to find some . im thinking 32 inch with 15 inch rims x 10.
 

Evan77

She’s not leaking oil, she’s sweating power!
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Mar 30, 2019
Messages
180
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Denham Springs, LA
Same thing happened to me. You need to drop your transfer case about 1".

I matched the bolt thread at Home Depot but got 1" longer and used two nuts as spacers between the frame and skid.

You could buy a TC drop kit but this is cheaper and quicker. I'm putting a SYE on soon so I didn't care about getting something cleaner
It just goes to show that every Jeep is different. I've lifted both my Jeeps 2.5" (1 Rubicon, 1 Sahara) and never had any vibes. All control arms and driveshafts were stock.
I wish. This happened on a 4 inch lift with a 1.5 inch tc drop.. almost a year ago too. Stock driveshafts too. Just rebuilt the tranny too and it went kaboom because of u joint failure. It was giving 0 vibes too until it all of a sudden broke. I bought a junkyard one and put a sye and have had 0 problems since lol

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AndyG

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Rob L.

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May 7, 2021
Messages
155
Location
Tennessee
I wish. This happened on a 4 inch lift with a 1.5 inch tc drop.. almost a year ago too. Stock driveshafts too. Just rebuilt the tranny too and it went kaboom because of u joint failure. It was giving 0 vibes too until it all of a sudden broke. I bought a junkyard one and put a sye and have had 0 problems since lol

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Hot damn.

Vibs or no vibs is not a good rule of thumb as I have come to learn when making sure the drive line is dialed in but to each their own.