dew22

Will running 305/30/19 front and 325/30/19 rear be OK? The rear is pretty much dead on at 26.7 diameter but the front is a little tall at 26.3, stock would be 25.8.. Will I run into any ABS,stability/ traction control issues? Any other concerns I’m over looking?

Thanks
Eric

JasonVette

295/30/19 looks tight on mine and it's a little lowered. I'd be worried about rubbing.

dew22

I’m going to be running a track leaning alignment, Apex said they’ll be fine. I’m more concerned about computer issues....

Bill Dearborn

The stock rear/front ratio is 1.039. The ratio you mentioned is 1.015. You are pushing the limits where you might get some interference from the nannies that are based on relative tire speeds. Traction control might activate a little sooner than it would normally activate.

A bigger issue is tire rubbing on the fender. I run a 305/660/18 slick in the front of my car. 660 is the tire diameter in mm which is a 26-inch diameter. I am getting rubbing on the front of the spat and at the top of the Stage 3 Large End Cap on the passenger side of the car but not on the driver's side. I also have -2.1 degree negative camber and +7.4 caster on the right front wheel.

I also get the rubbing on the passenger side if I run a 315/30/18 Hoosier R compound tire (25.6 inch diameter) instead of the slick.

Bill