Brake vibration with certain tires in front

[07Silverado4X4]

Hi Everyone. Thanks for a great forum. I have a 2007 Silverado 4x4 Classic Crew Cab. I had a brake vibration from the first day I bought it. I took it up to service and they did a force variation balance but said it was fine. Later when I rotated the tires it went away and I forgot about it. Now, I had the oil changed and rotated the tires to return the tires to their original location and the brake vibration is back. This is a very obvious vibration and it happens mostly at high speed braking like around 50-55, etc. I appreciate any input you guys can give me.

 

At any rate I absolutely love this truck. It gets good gas mileage for such a big truck and it looks great. GM has done an excellent job with these. The only thing I wish I had was Onstar!

[ryank1]

If the vibration only occurs during braking, you more than likely have warped rotors, not a tire problem.

[07Silverado4X4]

 

 

If the vibration only occurs during braking, you more than likely have warped rotors, not a tire problem.

Even if the vibration only occurs with a certain set of tires up front? It doesn't happen with the other 2 tires up front.

[07Silverado4X4]

If the vibration only occurs during braking, you more than likely have warped rotors, not a tire problem.

Even if the vibration only occurs with a certain set of tires up front? It doesn't happen with the other 2 tires up front.

 

I dropped the truck off today and the service dept looked at it and determined that the rear drums and axle had too much distance between them or something like that and they are replacing both rear drums and the axle. Why it seemed to happen with a certain set of tires I have no idea. I will post the results.