05 z71 Wobble/vibration after front spacers

[Ryanz71hoe]

so check this out. I just installed OE replica snowflake wheels (the kind for 2014 and up midnight edition) and I can’t seem to get the wobbling to go away. The tires are hankook dynapros. At first we balanced them and the wobble persisted. I ended up taking it to a different shop to do a road force balance and the problem went away, I drove it to almost 90 mph and it was like a dream. When they roadforced them, I had 2 inch wheel spacers on the back, but not on the front (ordering mistake, didn’t realize they sold in sets of 2) anyways, I installed the fronts, and now the vibration/wobble is back, and it is worse than before, but is pretty much only noticeable after 50 MPH. So what now? I have new moog inner and outer tie rods, relatively new Moog bearings, a 2 inch rough country leveling kit, and relatively new ac delco pro idler arm and bracket. I did the best I could to clean the mating surface where the spacers sit, and torqued them to spec. So what now? I’m stumped.

 

[wjburken]

So what now? I’m stumped.

Welcome to the forum. What year is your vehicle?

When is the last time you had the alignment checked?

BTW- This post might be better in the Street Suspension thread. Maybe an Admin can move it for you.

 

[Ryanz71hoe]

It is 2005 z71. I had the alignment done a week ago when I got the brand new tie rods put in. That’s definitely not it.

 

[wjburken]

It is 2005 z71. I had the alignment done a week ago when I got the brand new tie rods put in. That’s definitely not it.

It’s a long shot, but it might be worth putting a dial indicator on your front spacers to make sure one of them doesn’t have too much run-out. If one was machined such that the two surfaces are not parallel, that can induce a wobble in your tire like a bent axle would and could create a resonance at higher speeds.

I would also check the concentricity of the spacer as well.

 

[HiHoeSilver]

It is 2005 z71. I had the alignment done a week ago when I got the brand new tie rods put in. That’s definitely not it.

What wheel spacers did you use?

 

[Ryanz71hoe]

Rough country 2 inch. I just pulled the fronts off. The rears are still on and there is barely a shake over 80 mph


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[HiHoeSilver]

Rough country 2 inch. I just pulled the fronts off. The rears are still on and there is barely a shake over 80 mph


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Are they hubcentric?

 

[Rocket Man]

Should have bought my barely used 2" hub centric spacers I had in the classifieds forever. I sold them yesterday on EBay for $30 for a pair.....how much did you pay for yours? Hub centric I hope?

 

[Ryanz71hoe]

Yeah they are hub centric. I got em from rough country 50 a pair I believe.


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