LIFT DONE

OK, LIFTS COMPLETE, NOW WAITING ON WHEELS AND TIRES TO COME IN.
I PUT ON 3RD GEN 5100'S WITH OME 888 COILS, LR UCAS, ICON 3LEAF AAL WITH 1" BLOCK.
EXACTLY THE STANCE I WANTED!!!! THANKS TO MARIE AT HEADSTONG, SHE WAS AWESOME!! SHE PUT UP WITH ALL MY QUESTIONS.
NOW THE BAD PART, IM GETTING A VIBRATION WHILE RUNNING AROUND 30-40. SOUNDS LIKE IM RUNNING OVER THE RUMBBLE STRIPS THEY PUT DOWN ON SIDE OF ROAD. I INSTALLED CARRIER BEARING DROP, BUT DIDNT HELP. I NEED HELP FROM YOU SUSPENSION EXPERTS.......PLEASE

 

Ssshhhhh.... ears hurt.

 

You need to get the front diff checked. Sounds like the needle bearing. Common problem. TSB and everything. Lifting exacerbates the problem.

Put the truck in 4x4. If the noise stops put back in 4x2. If it begins again you have a needle bearing problem.

(If your truck is 2WD something else is wrong).

 

So after lifting it I'm sure dealer will not warranty it

 

Ok so I drove it and put it in 4x4 and the vibration was still there, so where do I go from there?

 

After lifting your vehicle did you go and get a new alignment done to your truck?

 

...pizza wheels?

 

Why are adding a block in the back . It's already level. Unless you go extentended on your shocks which I don't recommend ?

 

Yep, had alignment today, a buddy of mine is a mechanic for gmc, and he thought it was the tires (pre alignment), but wasn't the case. Came home after alignment and added carrier bearing drop, but didn't help any, might have made it alittle worse. This is so frustrating

 

Double check all the bolts and wheels make sure they are torqued. Hard to diagnose over internet , if still present after engaging 4wd that is a strange one. If nothing you try works , one of the guys in here with user name @honey had to put a Tom woods double carden front driveshaft , you can pull your front one if vibration stops voila !

 

Pull the carrier B drop bracket. What does the angle of the front axles look like are they at a severe angle?

 

I wanted to keep the rake in it. I put bilstien 5160s on rear, per Maria from headstrongs advise.

 

Post up the alignment spec sheet if you can as well. Hopefully he didn't align to Toyota factory specs.

 

Here's the alignment sheet

 

Alot of trucks do not benefit from the cb drop.

 

3° caster is attainable and desirable from you aftermarket UCAs.

 

Exactly caster is to low, dealers are clueless to aftermarket alignment specs.

 

More than likely your driveline angle is out of wack. This can be solved with axle shims, cb drop, or a combo of the two. It can take some playing around to find the sweet spot, or you can get all fancy and actually calculate it.

https://www.tacomaworld.com/threads/drive-shaft-vibrations-solved-step-by-step.244535/

 

Actually first off, is the rumble coming from the front or the rear?

 

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