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Discussion Starter #1
Ok I converted my jeep from 2wd to 4wd and I toke it for a test drive today. Shift great and im very pleased with the way it turned out but I have a vibration coming from the front. I changed out the u-joints with performance u-joints. What else could it be.
 

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when I had those vibes, the front shaft was loose..
 

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Discussion Starter #3
Hmmm. I can double check that.
 

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I had,, it vibe on 40mph plus.. speeds..
 

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Discussion Starter #5
mine happens about 20 mph
 

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something must be loose,, check every joint and every bolt.. IDK man,, im new to 4x4s.. but its a vibes in general are not that good..
 

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Discussion Starter #7
Im new to 4x4's too. I dont know whats going on. I might remove the front drive shaft and see if its still there.
 

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try that..
 

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Discussion Starter #9
Its not a big deal right now cause im not going to fix it till this weekend when I install my SYE
 

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well why dont you install your SYE first then take it for a spin again to see if you still have vibes..
 

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Discussion Starter #11
The SYE is only for the rear drive shaft. Isnt it?
 

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I guess, but the front is lower no too so they might have the same problem as the back.. IDK..you have 6.5" lift,,, thats a lot.. for a stock shaft,, check the angles... they might be stressing..
 

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Discussion Starter #13
i will have to see.
 

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There area number of issues that can cause vibrations in the front end. First suspicion is wheel balance. Get them checked and possibly rebalanced. Also loose or worn ball-joints, a worn tie-rod end, pooched control arm bushings and so forth. Also get a good alignment done on it. Toe could be off a bit, and if the control arms were not mounted exactly factory spec, you may never get rid of the front end quirks.

You mentioned that you converted to 4wd from a 2wd? Did the donor diff get rebuilt as in unit bearings, brake rotors, pads etc? Sounds like you may have some worn out front axle components or something loose.

Any time I have worked on my own front suspension I go back after 30-40 miles or so and re-torque everything, and then again about 100 miles after that just to be sure.

Hope that helps.
 

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Discussion Starter #15
There area number of issues that can cause vibrations in the front end. First suspicion is wheel balance. Get them checked and possibly rebalanced. Also loose or worn ball-joints, a worn tie-rod end, pooched control arm bushings and so forth. Also get a good alignment done on it. Toe could be off a bit, and if the control arms were not mounted exactly factory spec, you may never get rid of the front end quirks.

You mentioned that you converted to 4wd from a 2wd? Did the donor diff get rebuilt as in unit bearings, brake rotors, pads etc? Sounds like you may have some worn out front axle components or something loose.

Any time I have worked on my own front suspension I go back after 30-40 miles or so and re-torque everything, and then again about 100 miles after that just to be sure.

Hope that helps.
I install the front axle first and drove it for 2 weeks with no problems. All the bushings, tie rod ends, ball joints, u-joints. I did notice that when I was installing the front drive shaft It wouldnt fit and I had to lower the vehicle to bolt it in.
 

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Did you get a shaft that was for a stick and you have an auto? The auto is an inch or so longer.

I got a front shaft once that threw the weight and vibed like a bitch. I got another one in there and it was mint.
 

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What's your pinion angle like on the front axle? If i'm correct, you are 6.5" on short arms. That could be a pinion angle problem. Try driving without the front shaft. Then try without the rear shaft.
 

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Discussion Starter #18
if its a pinion angle how hard is that to fix
 

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