Hey all,
Recently my truck starts to shake at 70mph. I’ve had brand new tires installed and have them re-balanced twice. I have new upper and lower control arms as well as swaybar links. The truck makes a knock noise when pulling into the driveway or going over speed bumps. Wondering any other thoughts that could be the problem. Hub bearing? Engine mount?

 

Well you said truck so that narrows it down to not being a lawn mower. How about positing some info on the truck so people may be able to actually help.

 

Not Necessarily.....

 

Put ALL the truck's details into your signature as this page explains:

(click this text)

 

I always like to decipher a users name.
It's either a 1943 Ford F100 or a 2004.
Uses is currently 43 years old or was born in 1943.


OP, there really is some missing information, and contradiction.

I can understand a truck beginning to shake due to a misfire (engine shake), however I wouldn't state the tires are balanced and therefore is excluded.
What is the sequence of events:
Day 1 -bad vibration
Day 2 -new tires installed
Days since -additional balancig
-OR-
I had new tires, balanced twice and the vibration that occurred the day the tires were balanced are still present.

The people can help if you specify some of the vibration symptoms such as, is it a misfire condition causing shaking? Is it just the steering wheel? Is it mostly coming through the floor boards and steering wheel is somewhat stable.
How many miles on the truck -have you owned it since prior to the vibration.
What type of maintenance has been done such as universal joint replacement or is it a 4x4 with a bad front drive line/CV joints.

Anything else you think may be important to share, please share.

I like to remind posts like to to think about walking into a parts store and presenting a question "my truck shakes" and realizing the person you are looking at can't help because there is inadequate info. We are people too (just invisible and rude).

 

Wow, as a senior member I thought you would have given me a more professional response.
since this is an F150 forum, I can tell you that it is an F150. It’s a 2016 4 x 4 with a 4 inch rough country lift. 20 x 10 fuel beasts rims with a -18 offset. And as I mentioned in my original post it starts shaking at around 70 mph. The alignment is good and the balance is good. there’s no grinding or whining noise. The only noise I hear is when I pull into the driveway or over speed bump which sounds like a clunking sound.

 

Take a look at your engine mounts.

 

this is what I needed as guidance. Thank you!!

Truck ran perfect for a long time. I saw that I was having uneven wear on my front tires so I had them changed. A couple days after that I was on the highway and noticed the truck shaking severely. Brought it back to Mavis to do another alignment and check the balancing and they said it was a little off so they adjusted it. A couple days later I noticed the same thing so I took it back another time and they told me nothing was wrong I was. And then took it to a different Mavis who said that the balance was way off so they corrected it. This still did not help. Called corporate and they gave me all new tires and then did a road force balance. This still has not corrected the issue. When you rock the truck side to side there is a knocking sound that sounds like it’s coming from the center of the truck but I cannot locate it.
the stabilizer linkage is new as well as both upper and lower control arms on both sides. The struts are new as well. I was told that it could possibly be an engine mount but I don’t hear any noises if I accelerate with force so I’m not sure if that rules out the mount. I don’t know how to test for a hub bearings so if someone can tell me that then I can check that next.

 

how would I know if they are bad? Is there a specific test that I should do or is that something that mechanic would have to check for me?

 

I thought the lawnmower comment was pretty funny.

Look at it from the 'senior user' perspective, when we have questions asked daily without nearly enough information. You aren't the first, nor the last, to say "I need help with my truck- fix it for me please".

If the vibration is speed related, it's gotta be a tire or wheel (or something axle related.

If you are capable:
Rotate the tires from front to back and see if the vibration changes -ruling out a bent wheel or poor balance or improperly seated wheel (repeatedly despite wheels having been removed).
The wheels are the same as you've had for a while, only thing different is 2 sets of tires and vibration still persists?