vibration as speeds increase past 70mph

[tpxomaha24]

Hey guys so I have this vibration that comes in around 70 mph and gets worse the faster I go. I have a solid axle swap with qa1 coil overs all around. The vibration was present with the irs as well. I've had the driveshaft rebalanced I had my tires rebalanced, in the rear the tire size is 17/35/305 stock in the front. Any other idea's what it may be? Pinion angle? Bent rim? Clutch? It's really anoying. Thanks guys!

 

[Blueline]

Where are you feeling the vibration? Steering wheel? In your butt while your driving? In the shifter?

 

[sideways03]

I have a similar issue. I feel it mostly in the seat and center console. The rear view mirror vibrates a lot too.

I do see a few wheel weight stickers that look like the weights fell off, so that may be it. But is there anything else I can check?

 

[ScottsdaleSnake]

I have a similar issue. I feel it mostly in the seat and center console. The rear view mirror vibrates a lot too.

I do see a few wheel weight stickers that look like the weights fell off, so that may be it. But is there anything else I can check?

They normally remove the old weights, rebalance, then add new weights when you have your wheels rebalanced from either a flat tire fix or new tires installed. The vibration you're describing is probably not due to wheel balancing...I had a bad vibration at higher speeds (like 100+) and found out it was due to worn out clutch parts, .i.e. TOB, clutch disc, etc. After I replaced everything, vibration was gone. Keep us posted of your findings.

 

[sideways03]

They normally remove the old weights, rebalance, then add new weights when you have your wheels rebalanced from either a flat tire fix or new tires installed. The vibration you're describing is probably not due to wheel balancing...I had a bad vibration at higher speeds (like 100+) and found out it was due to worn out clutch parts, .i.e. TOB, clutch disc, etc. After I replaced everything, vibration was gone. Keep us posted of your findings.

I just had my clutch,fw,tob,pb,clutch fork, all replaced. Rear was rebuilt, new ring/pinion, seals, bearings throughout.

I do hear a rotational clunk when coming to a stop that is speed dependent. I've thought it was either the diff, u-joints, or something in the trans. Definitely sounds like it comes from more of the rear though. Checked all u-joints, shop said diff looked fine, and I even call Eaton and they said that noise is normal for a Tru Trac.

Any other ideas? I'm thinking of just replacing the u-joints just to see, even though these ones move freely.