Here is what caught my attention although it does sound a little dangerous:
Driveshaft Imbalance Test
Vibrations caused by driveshaft imbalance are more difficult to diagnose. One way to do this is to raise the rear wheels off the ground while supporting the rear axle (don’t let the axle hang otherwise it may create a driveline vibration by increasing the operating angle of the U-joints).
1. Start the engine and run the rear wheels up to speed (no more than 55 mph to be safe). When the vehicle starts to shake, note the speed.
2. Stop the engine, remove the rear wheels and reinstall the lug nuts to hold the brake drums in place. Then repeat the same test to see if the vibration is still present. If the vibration does not return, the problem is not the driveshaft but wheel and tire imbalance. If the vibration is still there, proceed to Step 3.
3. Stop the engine again, remove the brake drums and repeat the test once more. If the vibration is gone, the problem is drum imbalance. If the vibration persists, it’s the driveshaft.
Caution: Do not step on the brake pedal while the drums are off, doing so will force the pistons out of the wheel cylinders. Just shut the engine off and let the drivetrain bring itself to a stop.
My vibration is driving me nuts. I'm considering going back to stock. I don't wanna spend another 400$ on a drive shaft to find out I still have the vibs so I'm gonna try your test and see what happens cause I'm gettin pretty pissed.
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05, Silver DC. TRD O.R # 2 with Tow. 3" O.M.E / Toy Tec.
I was wondering if our drive shafts were not balanced good? This is the 2nd truck that I owned from Toyota with a double shaft. My other truck never needed a carrier bearing drop. And it was lifted much higher than this.
Maybe this would be a TSB issue? If Not for the fact that people need to install a lift before it becomes an issue.
Oh well? I might take my drive shaft in to get balanced? Just to be safe.
My vibration is driving me nuts. I'm considering going back to stock. I don't wanna spend another 400$ on a drive shaft to find out I still have the vibs so I'm gonna try your test and see what happens cause I'm gettin pretty pissed.
How bad is your vibration? Is it a harsh vibration? Or is it like a little buzzing sensation?
I had a slight shudder at take off. I installed the carrier bearing drop and presto gone. I did have real bad vibration problem when I had spacers on my front wheels. Got rid of the spacers and the vibration stopped. just my .02
I had a slight shudder at take off. I installed the carrier bearing drop and presto gone. I did have real bad vibration problem when I had spacers on my front wheels. Got rid of the spacers and the vibration stopped. just my .02
How much spacer did you have in the front?
I have 1.5" in the front above the coil and SuperSprings on max setting in the rear ( also approx 1.5" ) but notice no vibration.
Putting the truck on jack stands and running the truck in gear at 55mph sounds like a disaster waiting to happen.
If you really want to see if the driveshaft is "true" I'd take it to your local drive shaft/machine shop and have them balance it for you.
Hearing all of this horror stories with the lifted trucks and vibrations, has me seriously reconsidering lifting mine.
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2006 4x4 Access, V6, 6spd, TRD Off-Road, tow pkg. Donahoe Co's, TC UCA's, Dakar leafs, 5125's in the back and u-bolt flip kit. TRD exhaust, CAI. URD MAF calibrator. 17x9's, 285/70/17 BFG MT KM2. Locker-mod, fog mod and console vault.
How much spacer did you have in the front?
I have 1.5" in the front above the coil and SuperSprings on max setting in the rear ( also approx 1.5" ) but notice no vibration.
I had a 1/4" spacer. The peeps that do my work said that Toyotas have real sensitve front ends and the spacer was causing the problem. At the time I was running stock rims with 285/70-17s (and yes they had been balanced twice). I got new rims, got rid of the stock rims and spacers and no more problems.
Does the buzzing happen at certain speeds or constantly while driving? It may be related to your tire tread patterns
If you have really aggressive tread pattern like say the Geolander MT+ that I have. You're going to notice a ton of vibration on take off and stopping. I know because I had to put my stock wheels and tires back on and it went away. I have the driveline clunk at take off. It was there BEFORE the lift. It's kind of hard to tell what I have on mine because of my stereo. It makes EVERYTHING vibrate. I do know that if I take off real slow I have no vibrations or clunking feeling. The harder I pull out the more of a clunk I have. So it's either the driveline binding up under heavy torque loads or some kind of slack in the line.
EDIT:
If I put my truck in 4WD, it goes COMPLETELY away. Did the same thing before the lift as well. I have the shims, carrier drop, and diff drop installed.
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