New Lift=New Vibrations
04-20-2014, 03:11 AM
#1
JK Freak
Thread Starter
New Lift=New Vibrations (Pic Added)
Just had a RK 2.5 Flex put in my JK
Installed new front driveshaft
Also put on 315 Duratracs
Alignment was done
At about 55mph, I get vibrations (not shimmy) in the steering wheel and floorboards. It seems to lessen after I get over 60 mph.
I checked my tire pressure last night and it was at 40psi (shop never aired them down)
Could it be the over pressured tires? I haven't had a chance to take it out yet today.
I reset the tire pressure to 32.
Pic in my later post
Installed new front driveshaft
Also put on 315 Duratracs
Alignment was done
At about 55mph, I get vibrations (not shimmy) in the steering wheel and floorboards. It seems to lessen after I get over 60 mph.
I checked my tire pressure last night and it was at 40psi (shop never aired them down)
Could it be the over pressured tires? I haven't had a chance to take it out yet today.
I reset the tire pressure to 32.
Pic in my later post
Last edited by FDHog; 04-20-2014 at 04:20 AM.
04-20-2014, 03:26 AM
#2
JK Junkie
Oh wow, it could be a number of things since you just did some major parts changing. You are going to need to perform a process of elimination.
I would start with tire pressure see if that changes anything. An out of round or improperly balanced tire could also cause this. You could try moving around tires, swap in the spare.
Did you get new wheels also?
I would start with tire pressure see if that changes anything. An out of round or improperly balanced tire could also cause this. You could try moving around tires, swap in the spare.
Did you get new wheels also?
04-20-2014, 03:32 AM
#3
JK Enthusiast
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first thing I would check is if the wheels has been installed and torqued corectly.
Id you have a lug centric wheel make sure they are properly centered and tightened in sequence.
Id you have a lug centric wheel make sure they are properly centered and tightened in sequence.
04-20-2014, 03:47 AM
#5
JK Junkie
OK pull off the wheels and make sure the shop took off the retainer clips the factory puts on the studs.
If they left them on it will cause the wheel to not sit flush to the rotor.
This....
If they left them on it will cause the wheel to not sit flush to the rotor.
This....
04-20-2014, 03:58 AM
#6
JK Freak
Thread Starter
Think I found it.
Could forgetting to install 2 of the 4 bolts that connect the front drivshaft to the differential flange be a problem
Not even diagonal to each other. Both on the same side. Pissed off is putting it mildly.
Have to have a long talk with the shop that did the install on Monday.
Reputable shop, don't know what the mech was smokin.
Bringing it back so they can go over the whole lift.
Anyone know the bolt sizes and torque for the front diff DS flange on a D30?
Could forgetting to install 2 of the 4 bolts that connect the front drivshaft to the differential flange be a problem
Not even diagonal to each other. Both on the same side. Pissed off is putting it mildly.
Have to have a long talk with the shop that did the install on Monday.
Reputable shop, don't know what the mech was smokin.
Bringing it back so they can go over the whole lift.
Anyone know the bolt sizes and torque for the front diff DS flange on a D30?
Last edited by FDHog; 04-20-2014 at 04:18 AM.
04-20-2014, 04:29 AM
#7
JK Junkie
Ha! Yeah I suspect that could be your problem 
Wow if they left those drive shaft bolts off what else did they miss??
This is why nobody works on my vehicles but me....I just don't trust anyone.
Wow if they left those drive shaft bolts off what else did they miss??
This is why nobody works on my vehicles but me....I just don't trust anyone.
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04-20-2014, 04:30 AM
#8
JK Jedi Master
Pull a bolt out and take to hardware store to buy what you need. Recommend replace all four. Look up torques here ...
http://project-jk.com/jeep-jk-write-...orque-settings
http://project-jk.com/jeep-jk-write-...orque-settings
