Tire Change question

[cowboy1097]

Hi folks! Got a question about my '07 dually. Had to change a flat on the passenger side outer dual. The 5 remaining tires are in need of replacing and therefore the spare tire has the best tread of all of them. Will I have to worry about any axle/differential damage because the spare tire on the outer dual has better tread than all the others? I am using original factory tires.

[Clay Henry]

Won't be a problem for short term. Long term may reflect some premature tire wear.

[cowboy1097]

Thanks! Happy Truckin'!

[cowboy1097]

One of the guys at ford suggested putting the better spare on one of the fronts until the new tires come in. Don't really want to do this. Any opinions?

[rednekexprez]

It wont hurt anything to run it as the outer dual till the new ones get there...

[Clay Henry]

That would be better...on the rear you have both sides tied together through the gears and a larger size tire (even though minimally) is turning different revs that the other side. It will cause some tension on the gears but not noticeably and the result will be a tire skip...again, not noticeable to you.
On the front their not tired together through the gears.

[cowboy1097]

Any chance of blowing out the limited slip differential clutch pack? I don't mind having extra wear and tear on the tire, my main concern is the axles and differential.

[rednekexprez]

You will not have any axle or differential damage from running a spare that is the same size tire as the old even know the spare has more tead it will wear out the spare tire in record time if you dont change them soon.....