Truck shakes at 65-70mph

[mhorn0817]

04 yukon denali with 100k miles. around 65-70mph the truck kinda shakes while driving, you can feel it through the whole truck. what could this be?

 

[Donnie Yukonie]

number of things tires, ujoints, alignment, loose or worn suspension parts or other things define the shake? and have you recently got your vehicle alignment done?

 

[mhorn0817]

just had some work done to my truck and had mechanic look over the whole truck, didnt notice any suspension problems. had a alignment down within the past 6 months...its a real like shake/vibration but only around 65-70mph, no other speeds

 

[DenaliAK]

Balance could be off. Sometimes treadwear is slightly uneven and it gradually throws the balance out of whack, which you often don't feel except at certain speeds. It would be a cheap, easy fix if that's what it is.

 

[Gzes]

My guess is tires are shit. My taurus haf the same problem til i swapped tires. Its been wrecked so it will wear tires bad but yea thats life. Pos taurus.....

 

[mhorn0817]

i guess that could be a possibility as well, i think tires were balanaced about a year ago

---------- Post added at 06:05 PM ---------- Previous post was at 06:03 PM ----------

tires still have 50% tread left

 

[Donnie Yukonie]

i guess that could be a possibility as well, i think tires were balanaced about a year ago

---------- Post added at 06:05 PM ---------- Previous post was at 06:03 PM ----------

tires still have 50% tread left

6 months is along time to go without an alignment IMO even a alignment check , and yea tires constantly wear i get my tires rebalanced every 10k miles or so

 

[Gzes]

I never rebalance mine dont have that kinda luxory lol

 

[Big_G]

04 yukon denali with 100k miles. around 65-70mph the truck kinda shakes while driving, you can feel it through the whole truck. what could this be?

I've got a '99 1500 Suburban, that I bought in 2000, and have the same issue.
I've changed 3 sets of wheels, 4 sets of tires, Brake rotors, tie rod ends, 3 different brands of shocks, multiple alignments and balance jobs....ease up to 66 and TADA there it is. Flabber gasted I am.

 

[CEN2MENTAL95]

You need road force balancing...regular static/ dynamic balancing doesn't cut it

 

[Donnie Yukonie]

I've got a '99 1500 Suburban, that I bought in 2000, and have the same issue.
I've changed 3 sets of wheels, 4 sets of tires, Brake rotors, tie rod ends, 3 different brands of shocks, multiple alignments and balance jobs....ease up to 66 and TADA there it is. Flabber gasted I am.

u joints?

 

[Doverpoint]

I had this exact same problem. I ended up replacing the drive shaft. Hard to believe, but they do go bad. When you replace the drive shaft make sure you buy high end universal joints, and while you are at it, make sure the fluids in the transfer case and the rear end are changed and at the correct levels. Good luck!

 

[mhorn0817]

welp, turns out tire balance was the issue. although i balanced the tires a year ago, a sticky weight must have falling off because one of the wheel was 5oz out