2nd Gen Non-Engine/Transmission Just rotated tires today, and now crazy vibes @ 70-80 mph!

[C. Harlan]

What's the deal? everything was smooth sailing before... do I need a front end alignment? everything was all gravy train before today, but since more and more HP is coming out of the motor, I needed to rotate the tires, since the back ones to not like to stay under the truck! Would appreciate some replies here... .



-Chris-

 

[BFC]

Must be that power Edge box on your 12V plays hell on your tires dude. LOL



Glenn

 

[TxDieselKid]

Originally posted by BFC

Must be that power Edge box on your 12V plays hell on your tires dude. LOL



Glenn

LOL, I say rotate them back...



Andrew



P. S. Your still not on my cool side for calling me from "THE" game.

 

[Blakers]

One of the tires that was on the rear is probably slightly out of balance and you didn't notice it until you moved it to the front. I'd recommend having the balance checked.



Good luck.

 

[C. Harlan]

well, they did a rotate and balance, so I am guessing it may be the alignment?? Is this the "DEATH WOBBLE" people talk about??



-Andrew... I had to call someone, someone who I thought would appreciate the call, with the score, from the game... sorry, didnt mean to get your panties in a ruffle!! Just kidding buddy... .





-Chris-

 

[dcasselberry]

Hey Chris:



If you get the "death wobble", you'll definitely know it..... feels like you've had both front tires go flat simultaneously, and the whole front of the truck shakes like crazy.



For whatever reason, the front ends of our trucks are pretty sensitive to everything from tire balance to alignment, to drag link and track bars. I've had the death wobble before, and after getting track bars, drag link, and steering stabilizer replaced, it's been pretty stable. But even with all of that done, if a front tire is out of balance, it can cause death wobble. It's happened to me.



Dan

 

[illflem]

On these trucks if you don't rotate every 3-5k you're probably better off not to rotate at all. Put your tires back where they were and it most likely will be fine.

 

[Gary - K7GLD]

I trust you are aware that when rotating steel-belted radials, you MUST maintain the same direction of tire rotation - which means the tires can only be moved from front to rear on the SAME side of the vehicle, and vice versa? Otherwise, the steel cords that have assumed a set position under the tire tread CAN "bunch up" when the direction of rotation is changed, causing problems as you describe...



YEAH, I know, SOME fellas get by with doing it ther "other" way, but some guys get bit in the behind...

 

[Ron Bissett]

Are you running the same psi front and rear ? Ron in Louisville KY

 

[Blakers]

Originally posted by Gary - KJ6Q

I trust you are aware that when rotating steel-belted radials, you MUST maintain the same direction of tire rotation - which means the tires can only be moved from front to rear on the SAME side of the vehicle, and vice ve [/QU



This was the old recommendation back years ago. Now they recommend moving the rears straight forward and moving the fronts back diagonally.



Chris, did you have the balance checked during this rotation? They may change a little during use and it may be just enough to through one off. The rear of the truck is much more forgiving than the front, so you may notice it much more when moving the rears to the front.

 

[Dieselnerd]

Rotating so that they always turn in the same direction may be the old way but according to many tire people I've spoken to, it's still the best way. I used to rotate the first set of tires on my truck the way it says in the manual and after a couple of times it started pulling to the left. Shortly after, it threw a tread and it was properly inflated and not overloaded. Tire dealer said they still see the steel belts take a "set" even though the manufacturers claim it doesn't happen. I always rotate front to back these days and never have had a problem since.

 

[keimmmo]

If I understand correctly, you had the tires rotated and balanced. If they were computer balanced, (about all that is available anymore), the computer could be out of calibration. I have seen MANY balance jobs that shook worse after the balance than before!!! I use a "stone age technology" bubble balancer. I have re-balanced many sets that every tire was off exactly the same amount! (Computer out of calibration) I just added a weight in the right place on each tire and everything was smooth again!



I know the computers are SUPPOSED to be better. But, I have had a lot of trouble with computer balance jobs. My bubble balance is good for everything I have the guts to run the truck!



Steve

 

[jlccc]

Originally posted by Gary - KJ6Q

I trust you are aware that when rotating steel-belted radials, you MUST maintain the same direction of tire rotation - which means the tires can only be moved from front to rear on the SAME side of the vehicle, and vice versa? Otherwise, the steel cords that have assumed a set position under the tire tread CAN "bunch up" when the direction of rotation is changed, causing problems as you describe...

My Dad used to tell me the same thing. However, the people at two local Big O Tire stores say that is no longer necessary. I rotate my back tires directly to the front and I rotate the front tires to opposite rear corners.

 

[bstegemann]

Even if they balanced your tires correctly, you could have wheel force variation problem. See www.hsp9700.com for an explanation. I have bought on of these machines at work and they kick butt. The web site can also direct you to the closest store that owns one. The machine is a big investment, so don't expect a $25. 00 balance.