HOW TO FIX DRIVELINE VIBRATION AFTER YOUR LIFT

If you have driveline or differential vibration at highway speed or under acceleration this is probably where you(or the shop) went wrong, how to fix this vibration, transfer case and pinion angle and this applies to most lifted trucks.

FORD TOYOTA CHEVY DODGE RAM 150 250 350 1500 2500 3500

[ThePolaris]

Thank you brother. I bought lifted leaf spring and the shims on the bottom where the wrong way and my truck vibrated crazy. I swapped them and now its perfect! Thanks!!!!

[Charger_]

I’m new to this 4WD stuff but definitely not to optimizing performance. My pinion angle is ridiculous on my Excursion. Many, many 4WD guys have looked at my pinion and said, “That looks right. You’re good.” and it has blown my f-ing mind. To the point I have been doubting everything I ever knew about pinion angle and I’ve built HUNDREDS of 200+ stock cars! How this ONE person has a clear understanding of pinion angle enough to post this video is quite unreal to me! But, thank you for this! To confirmed exactly what I always knew and calling out the 4WD shops for this BS is well deserved for them! They, and anyone who doesn’t know what you show in this video, are dead-@$$ wrong! U-joints are NOT designed to run in a perfectly aligned setup. Period.

[GMoney-gtqo]

GREAT JOB EXPLAINING...I had this vibrating problem-intermittent...was driving me CRAZY. I don’t even eat to say how much money I spent with shops trying to correct this issue. Thanks to you and the information on the tapered blocks - problem solved. SUPER JOB

[TheGbab]

Good explanation. It's also very important when removing or servicing a driveshaft that it stays in "phase" If you pull out the spline and stick it back wrong you'll get vibrations in all cases because the joint yokes need to match front and back.

[shiza]

I had a small lift on my Tacoma with a carrier bearing. The taper pointed towards the transfer case allowing the axle to be closer to the angle with the transfer case. So a carrier drop is now in order to alleviate the small vibe I get between 20-30 mph. Thanks for playing.

[SpikeBachman]

duuuude! so glad I watched this before I installed my shims! I guarantee you I would have done it backwards! thank you!

[bourbonbeertractorsandprep]

Great and thorough explanation, simple and to the point!

[charliedee]

Works up to around 4-5 degrees operating angle, then you will get vibration even with identical angles. That is when a double cardan is needed at the transfer case with the slip built into the d/shaft. In that case the pinion does point straight at the transfer case, all the angles are taken care of with the double cardan. You long wheelbase guys are spoiled, double cardan front and rear is standard practice for us little SUV guys (Grand Cherokee) with even a small lift for no vibe running. Dig the Excursion, I was a square body Suburban guy for years until my crew got smaller.

[alexb.]

Great video, liked and subscribed. It helped me understand the cause of vibration in the rear axle when driving. I am in the process of installing a 4inch zone lift kit on my super duty and couldn’t understand the purpose of the shims I received or how to utilize them till I just watched this. Thanks for the video!

[ronrogers]

You can have your Transfer case or transmission angle different than the pinon angle if you use a Double Cardan u-joint at the case/trans output. This is necessary when
you use a driveshaft with single u-joints and have 10 degs or more angle on your driveshaft to joints. In this case you would want the pinon angle pretty close to zero, maybe neg 2 degs
so with load you end up with zero or maybe plus 2 degs. A double Cardon u-joint is just two u-joints in the same joint. The 2 u-joints in the Double Cardan cancel out the vibration.
Lots of 4x4's will have a double Cardan in the front drive shaft because its to short the have proper angles and not bind. The shorter the driveshaft is, the more likely you will need a
double Cardan u-joint at the case when you lift your truck. I found all this out the hard way.

[MArleyzZz]

Great and awsome explaination, thank you again thank you. I am suffering from such a vibration after lifting my sequoia 2011 up by 2’ and I don’t really know how to get rid of this body vibration during acceleration.

[akienazari]

The best vid I ever seen, thx mate, keep your vids up👌👌

[xWhiteShadWx]

One question, so if my truck has a carrier bearing in the middle i want that carrier to be parallel to the red line in your diagram right ? only the trans and the differenctial should be at the 180 DEG ?

[dominiccattano]

Thank you for.the explanation... I've lifted my 4gen 3 inches.with those Ebay leveling kits, looks great!!! Level the truck perfect however, after that vibrates between 15 and 20 miles ... nothing.crazy but is driving me.nuts i need help, :(

[CRMAG]

Not sure if you have dealt with the new silverados that have the shim at the bottom of the leaf pack that is tied into the leaf pack through the center pin. I have a 2.5 inch tapered block. should I leave the shim and with the tapered block then from this talk?

[BrvnBlw]

So is it better to adjust it little bit lower (negative angle) to be in line when accelerate? Or better to adjuste in line flat with no load?

[stevohmelike]

Finally the introduction that gives knowledge at the beginning.
I shake my head at other people who do things incorrectly.
However, have you thought of changing those Rusty ass UJoints?
One other question, any change in angle when springs are loaded?

[alexv]

Awesome vid and thanks. Everyone is saying turn the tapered lift block backwards…..what is backwards?? Thin side forward or thick side forward?? I’m guessing thin side forward. Let me know and thanks👍

[nickjames]

This the best explanation I ever seen thank you

[blakenorman]

What is your driveshaft angle? is it 20degrees? more? i had my 47 one ton dodge set up with a slant 6 and 904 Trueflight and 8 1/4 rear, felt no vibration, putting in a 360 la with a 8 3/4 which has the pinion sitting a little lower will be making my driveshaft angle a little steeper, guess ill try your no double cardan joint just keeping transmission yoke and pinion yoke parallel with each other, see how it feels, do you know what kind of rpms the double cardan can handle? thanks for video, just got a digital angle finder, gonna see what angle my driveshaft will be at, keep hearing if there's more than 1o degrees between the yokes and driveshaft the parallel yokes wont cancel each other out, but it looked like your driveshaft was pretty steep