In reading over this, the items I did not see that were checked or replaced were the upper control arm bushings, upper or lower ball joints, or lower control arm bushings. The lower ball joints take all the weight and wear. Upper ball joints pretty much last a long time.

It's less spammy if I can answer everything as I see them, lol.


I'm guessing it could be engine mounts then. I feel a bit of a shake at idle engine speed when stopped at a traffic light. But, reving the engine in netrual nutralizes that idel shake, so it may not be a contributor at highway speed. Regardless that's something I should check anyway.


I'll respond with a video where I'm checking it. I did check them, but wasn't sure how exactly they should feel. They seem fine to me.
https://drive.google.com/file/d/1bf_...ew?usp=sharing


I wouldn't think it's not working right. The whole transmission still shifts very smooth for the it's age.


Yes. They seem fine. No lateral play at all.


I did replace bushings. just forgot to mention. The upper control arms were replaced completely while new bushings were pressed into the lower control arms.
The driver side bushings were really worn out. Passenger side bushings were fine, so that lower control arm was left alone.

Update on the shaking. It seems to have mostly (if not completely) gone away.

i took it back to Pepboys to have then double check the wheel balance. The tech working with me did say that all 4 wheels are very slightly off balance.
He said that the previous guy who installed my new tires (same store where I bought the tires) didn't install the weight correctly, so he took them all off and reinstalled new ones on the outer rim.
It feels much better now. Any vibration now is definitely from the road.

https://cimg5.ibsrv.net/gimg/blazerf...d437a1bd2c.jpg

Rear issue possibly
 

Observed same issue years ago in a car. After exhausting all issues up front moved to rear. Finally replaced rear rotors that took care of vibration. Thought for sure issue was in front, funny how vibration transfers in a vehicle.

Did you happen to notice how the wheel weights were previously installed?......Trying to figure-out how the weights could not be installed incorrectly....wrong place on the wheel, okay...but ???....unless they were against the tire instead of the wheel??

Good to read the vibrations are gone.

You know, I might need to check into this too. My rear rotors are definitely due for replacement. I replaced the front ones over year ago.

The weights before were more or less how they are now. Just only on the inside. The tech said he pulled them all off and re applied them. Seems he added more.

I'll post some photos of the weights, cause it seems odd that so many were needed. The passenger side has the most.

https://cimg6.ibsrv.net/gimg/blazerf...a7ff7924f0.jpg
Rear passenger with these strange inner-rim weights.


https://cimg8.ibsrv.net/gimg/blazerf...3899b48257.jpg
Rear passenger inner weights.



https://cimg9.ibsrv.net/gimg/blazerf...d26b1a0df6.jpg
Rear driver inner weights



https://cimg0.ibsrv.net/gimg/blazerf...9fd0bc02a5.jpg
Front driver inner weights



https://cimg2.ibsrv.net/gimg/blazerf...88a558ddd2.jpg
Front driver outer weights.



https://cimg7.ibsrv.net/gimg/blazerf...7ce1037673.jpg
Rear driver outer weights.



https://cimg8.ibsrv.net/gimg/blazerf...8de9a5961e.jpg
Front passenger outer weights.



https://cimg9.ibsrv.net/gimg/blazerf...b62548a14f.jpg
Rear passenger outer weights.

Wow that looks like @ss. Who the hell puts clip-on weights onto the outside of an aluminum wheel.

On a more constructive note, that is A LOT of weight. Normally tires need no where near that much to true up. I’m thinking the idiots at pep boys probably should have mentioned that to you, but it comes as no surprise.

I’ll take a bet you’ve got a problem with at least one of your tires. Excessive heat and other issues can cause the tire belts to squirm or begin to delaminate; sometimes this isn’t readily visible.

Your felt vibration may be another issue altogether, but I’d take my bets on a bad tire.

I've noticed that using that many weights is a cause of a) a bent rim, or b) the tire bead isnt sitting right, they should have let the air out and turned the tire 1/4 turn on rim.