Anyone run 275 width on 9x19 rims in rear? Any issues?

[PhillyMike]

Reason why below, but basic question- does anyone have experience with running 275/40R19 tires on 9x19 ET 45 (PP OEM front wheel) on the rear of a 2015+ Mustang GT? Almost certain fitment it will physically work in rear. Not certain if there are potential issues with that wide a tire on a 9" rim. It is on the edge of recommended manufacturer range.

Why: I have GT Performance Package and currently just one set of rims, the stock 9x19/9.5x19 staggered ones. Currently have summer tires mounted, stock PP dimensions and had been switching back and forth with my winters on same rim the last few years. Performance winters match my summers- 255/40R19 front and 275/40R19 back. I like the ones I have a lot and want to keep them until they are worn out.

Getting tired of having the tires swapped on same rims. Have opportunity to get a used set of 4 9x19 ET45 FoMoCo PP style rims for a very good price. Would like to use current winters, which I like a lot and have lots of life left, giving me a staggered 255/275 tire set up on square 9x19 rims.

Anyone see a particular issue with doing this?

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[T Fades]

yes you can run that setup

 

[Dave2013M3]

It will work, but it won't be optimum.

 

[HoldenSSVandGT350]

Reason why below, but basic question- does anyone have experience with running 275/40R19 tires on 9x19 ET 45 (PP OEM front wheel) on the rear of a 2015+ Mustang GT? Almost certain fitment it will physically work in rear. Not certain if there are potential issues with that wide a tire on a 9" rim. It is on the edge of recommended manufacturer range.

Why: I have GT Performance Package and currently just one set of rims, the stock 9x19/9.5x19 staggered ones. Currently have summer tires mounted, stock PP dimensions and had been switching back and forth with my winters on same rim the last few years. Performance winters match my summers- 255/40R19 front and 275/40R19 back. I like the ones I have a lot and want to keep them until they are worn out.

Getting tired of having the tires swapped on same rims. Have opportunity to get a used set of 4 9x19 ET45 FoMoCo PP style rims for a very good price. Would like to use current winters, which I like a lot and have lots of life left, giving me a staggered 255/275 tire set up on square 9x19 rims.

Anyone see a particular issue with doing this?

No issue. My OEM 19x9 rears on my SS Sedan have OEM size Conti ECS 02s 275/35s and it’s within the rim width spec of any 275 section width tire I’ve seen. And it pulls 1+ G lateral.

 

[horsepower addiction]

I have ran 275/40/19 and 275/40/20 in the front so you should have no problem in the back. I run 315/35/20 in rear so you should be good

 

[ThatDude5.0]

I know it's not your exact setup, but I have a 2019 PP1 on stock suspension with 275/40R19 square on 19x9.5 wheels and I have zero issues. No rubbing at all and about 1/4 of an inch space left with the wheel fully turned.

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