Are there 'Normal' Driveline Vibes?
#1
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Year: 1996
Model: Cherokee
Engine: 4.0
Are there 'Normal' Driveline Vibes?
I've been searching around on this for a while, can't really find anything specifically so figured I'd post up.
I bought my XJ lifted 3", and while I do notice some vibes, I really have no baseline for what is 'normal'. I get some vibration at certain speeds, like a resonance throughout the unibody, but nothing that rings any alarm bells as feeling wrong.
I'm sure the best thing to do would be check out a stock Cherokee at a lot somewhere, and see how it rides as a comparison. Save that, I am here asking what y'all think.
I bought my XJ lifted 3", and while I do notice some vibes, I really have no baseline for what is 'normal'. I get some vibration at certain speeds, like a resonance throughout the unibody, but nothing that rings any alarm bells as feeling wrong.
I'm sure the best thing to do would be check out a stock Cherokee at a lot somewhere, and see how it rides as a comparison. Save that, I am here asking what y'all think.
#2
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Year: 1994
Model: Grand Cherokee
Engine: 4.0
I have some vibes in my jeep and have since it was stock, I also have some vibes in my 94 dodge truck. As far as im concerned it just comes with the territory.
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Year: 1996
Model: Cherokee
Engine: 4.0
Any description? I suppose I could describe mine:
Some times it's hard to tell whether it is engine lugging or driveline vibes, I've got a 5 speed. Mostly what made me post the thread is traveling ~35 or ~48, in third and fourth respectively, I get some choppiness under medium acceleration. It almost feels like an overtight motorcycle chain feels, or even a little similar to low-speed lugging on the engine. It borders on feeling like an engine hesitation but the accel isn't affected other than not being smooth.
It seems to clear up as RPM/speed increase.
Some times it's hard to tell whether it is engine lugging or driveline vibes, I've got a 5 speed. Mostly what made me post the thread is traveling ~35 or ~48, in third and fourth respectively, I get some choppiness under medium acceleration. It almost feels like an overtight motorcycle chain feels, or even a little similar to low-speed lugging on the engine. It borders on feeling like an engine hesitation but the accel isn't affected other than not being smooth.
It seems to clear up as RPM/speed increase.
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Year: 1990
Model: Cherokee
Engine: 4.0
I'm at 5" of lift and have NO vibrations. Smooth as silk. I have installed a SYE with double cardon shaft in rear with rear axle rolled up pointing at the TC, greased all joints, and set my front caster to 5 degrees. Running 33x12.5 General Grabber AT2s.
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Year: 1997
Model: Cherokee
Engine: 4.0
Originally Posted by kevin__jeep
Any description? I suppose I could describe mine:
Some times it's hard to tell whether it is engine lugging or driveline vibes, I've got a 5 speed. Mostly what made me post the thread is traveling ~35 or ~48, in third and fourth respectively, I get some choppiness under medium acceleration. It almost feels like an overtight motorcycle chain feels, or even a little similar to low-speed lugging on the engine. It borders on feeling like an engine hesitation but the accel isn't affected other than not being smooth.
It seems to clear up as RPM/speed increase.
Some times it's hard to tell whether it is engine lugging or driveline vibes, I've got a 5 speed. Mostly what made me post the thread is traveling ~35 or ~48, in third and fourth respectively, I get some choppiness under medium acceleration. It almost feels like an overtight motorcycle chain feels, or even a little similar to low-speed lugging on the engine. It borders on feeling like an engine hesitation but the accel isn't affected other than not being smooth.
It seems to clear up as RPM/speed increase.
SYE and new rear driveshaft is the recommended fix.
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#8
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Year: 1996
Model: Cherokee
Engine: 4.0
Thanks for all the responses. I actually have a 1" Tcase drop kit I ordered with the lift and am planning to install this weekend when I recheck all the suspension torques. I'll report back if that solves my problems.
Tssanni - When you talk about shimming the rear axle is that in order to change the angle of the differential to correct the driveline?
Tssanni - When you talk about shimming the rear axle is that in order to change the angle of the differential to correct the driveline?
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Year: 1999
Model: Cherokee
Engine: 4.0
Thanks for all the responses. I actually have a 1" Tcase drop kit I ordered with the lift and am planning to install this weekend when I recheck all the suspension torques. I'll report back if that solves my problems.
Tssanni - When you talk about shimming the rear axle is that in order to change the angle of the differential to correct the driveline?
Tssanni - When you talk about shimming the rear axle is that in order to change the angle of the differential to correct the driveline?
#10
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Year: 1996
Model: Cherokee
Engine: 4.0
I installed the TC drop and it has smoothed out A LOT. I still get some vibes, notably a cyclical vibe around 80mph. I'm looking into U-Joints though I have some learning to do still before I can diagnose it.