AlphaVip

iTrader: (1)

So I have an AWD IS and recently rebuilt some wheels and got new tires. Ever since the new tires I've been feeling a slight vibration when I let of the gas or cruise at highway speeds (65mph+). I'm fully aware of needing to have the same rolling diameter on all four tires and I did my homework before buying new tires. In the front I'm running a Falken 543 225/35R19 on the 19x9, according to Falken the OD is 25.3in. In the rear I'm running a Toyo proxes 4 plus 235/35R19 on a 19x9.5 size wheel, the OD is 25.5 in. So there is a .2in difference between the two tires but the rear is slightly stretched.

Do you think the vibrations are due to the staggered set up?

I feel the vibrations coming from the front, could it be that the Falkens just cause some vibration?

AlphaVip

iTrader: (1)

Also should mention that before rebuilding the wheels I was running them at 19×9.5/19×10.5 with a 225/35 (can't remember what brand) in the front and a 235/35 nitto nt555 in the rear. I hade these wheels sitting in my garage before buying my car, I figured I'd slap them on for ****s and giggles. It drove fine with no vibrations what so ever.

pheonix72

iTrader: (6)

Most likely you have an unbalanced tire (s). Can you swap front to back and see if the vibrations change? I would have the tires shop check the balance first (hopefully they have and used high speed balance equipment)

Bichon

I agree with pheonix72 that an improperly balanced wheel is one of the prime suspects for vibrations at high speeds.

Another frequent cause is a bent rim; what was wrong with your wheels that caused you to have them rebuilt?

AlphaVip

iTrader: (1)

I'll have them rebalanced this weekend hopefully that solves my problem. The offsets I had before where WAY to aggressive, I would have needed a wide body kit or some serious negative camber. What makes me worry a bit is the fact that the vibrations are only noticeable when I let off the gas. If I'm accelerating, even a little bit the vibrations go away.

deestyle28

iTrader: (3)

Maybe ball bearing? I had a vibration issue cruising at 40mph awhile back and dealership said it was the ball bearing. Had it fixed under warranty and no issues now.

AlphaVip

iTrader: (1)

^ I don't think so because it started happening as soon as I put on my new wheel set up.

pheonix72

iTrader: (6)

I dont think so neither. There would be a very noticeable noise from the wheel before you could feel the vibrations from wheel bearing failure.

AlphaVip

iTrader: (1)

Out of curiosity, what does it feel like when you begin to have differential issues due to wheels not having the same OD?

613tl

might be not balanced properly or bent wheel

VMRWheels

+1

Sounds like a balancing issue. Make sure to have them road-force balanced

The only time I've seen a diff issue (varying rolling diameters) the car just stopped and heard a ton of noise from underneath.

smokyis350

iTrader: (21)

Can you explain what you mean by "rebuilt wheels?" If you have a bent on the wheels, it can cause vibration

AlphaVip

iTrader: (1)

I am well aware that a bent wheel can cause vibrations... I have 3 piece wheels. I replaced the inner barrels and outer lips to change width and offset of the wheels. The wheels went from being 19x10.5 -15 to 19x9 +18.