Different tire heights front and rear

[Betohemi661]

Hello everyone
Having an issue where my front brakes are dragging in the front and getting hot would having different height tires front and rear cause this only thing ive done recently is tires

 

[5thGenLoco]

No

 

[Eighty]

Seems to me like that would cause a problem. 255’s in the front and 285’s in the back? I believe that’s about a 5% difference in rolling distance per revolution. So your front discs are working even harder than they already do.

 

[Scram1500]

The speed difference between the front and rear might be confusing the traction-stability control system

 

[jdefoe0424]

I would be inclined to go with what Scram said, the stability and traction control monitors the wheel speed on all 4 corners. So if it thinks the front tires are slipping (spinning faster than the rear) it would apply the brakes to transfer the torque to the rear tires. I would think this would only be true if in 4-Hi or Auto 4x4...but that could be wrong.
I would think driving down the road you would see the stability/traction control light come on and I'm going to guess it might set a CEL also eventually.

Did you monitor the front brake temperature before? These aren't light trucks and it takes a lot to stop them.

 

[5thGenLoco]

In a 2wd truck?

 

[Eighty]

Well, it seems obvious that the truck doesn't like this. No observed issues before - then change tires - now hot brakes.

 

[Neurobit]

Well, it seems obvious that the truck doesn't like this. No observed issues before - then change tires - now hot brakes.

Agree.

 

[5thGenLoco]

I'm asking; does the rwd model have traction and stability control that monitors all 4 wheels?

 

[jdefoe0424]

I'm asking; does the rwd model have traction and stability control that monitors all 4 wheels?

Yes, the stability control still acts on all 4

 

[Drewster]

I'm asking; does the rwd model have traction and stability control that monitors all 4 wheels?

Yes. It's been about 15 years since you could buy a Ram without wheel speed sensors on all 4 wheels

 

[Scram1500]

Try letting air out of the larger tire to match the rolling diameter of the smaller tire and see if the problem goes away

 

[Betohemi661]

only reason i noticed is that the discs are developing light heat spots….asked my tuner jay about it an he says that the front is applying the brakes due to the difference in tire height said I could remove the abs fuse but just went ahead and ordered the same size all around