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shaking at highway speeds

4K views 8 replies 7 participants last post by  SKYLINE-CJ5 
#1 ·
so after putting on my 34" bgf km2s on 16x8 wheels I can feel a slight shake in...well.... everything..... and can see it threw the rearview mirror (the spare tire looks to be moving back and forth slightly)

What can be causing this? Just the mud tires being them selfs? balancing issue? Is it something that I should be worried about?
 
#2 ·
so after putting on my 34" bgf km2s on 16x8 wheels I can feel a slight shake in...well.... everything..... and can see it threw the rearview mirror (the spare tire looks to be moving back and forth slightly)

What can be causing this? Just the mud tires being them selfs? balancing issue? Is it something that I should be worried about?
I bought a set of those a month ago 285/75/17 (34") from Discount Tire. Same issue, maybe not as bad. $2500 on tires and wheels and I pulled them off after 2 days. 2 weeks later I took them to a friends shop and we rebalanced at 40 psi, all needed 1 to 1.5 oz of weight. Runs fine, no as good as the 32" KMs but no bothersome vibration. Hope this works for you. I also had a front end alignment (did a 2.5 FT spring lift awhile back)
 
#7 ·
Chalk test the tires to get the correct psi. My Internet went out so I can't link it to u from my phone. But there's a few threads on how to do it.

Definitely need a rebalance done.
 
#8 ·
snochick said:
Chalk test the tires to get the correct psi. My Internet went out so I can't link it to u from my phone. But there's a few threads on how to do it.

Definitely need a rebalance done.
Agreed.

I just chalked my 35's at 28/26 (cold)
They get up a couple psi when hot.

Bigger tires require less air.

Probable not why you are shaking though but should help with ride. 100 % positive it's a balancing issue or out of round tire/wheel.

Google "hunter roadforce machine" in your
area. They do a better job at balancing bigger meats :)
 
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