Winter tire fitment

[Tbruz]

2024 ST with 275/45/R21 tires and the ST high perf package; so 21" rims and high perf brakes.
No plans on keeping the stock tires/rims on it during the New England winter season.
I have a chance to pick up 4 nearly new snows on rims for close to nothing.
Unfortunately they are from an earlier Explorer and are 18".

Will 18" 245/55/R18 tires on PIU explorer rims work or am I looking at caliper interference?
I recognize that the speedo will be off but I can accept that issue.
Thanks in advance.
Tbruz

 

[2020FordRaptor]

2024 ST with 275/45/R21 tires and the ST high perf package; so 21" rims and high perf brakes.
No plans on keeping the stock tires/rims on it during the New England winter season.
I have a chance to pick up 4 nearly new snows on rims for close to nothing.
Unfortunately they are from an earlier Explorer and are 18".

Will 18" 245/55/R18 tires on PIU explorer rims work or am I looking at caliper interference?
I recognize that the speedo will be off but I can accept that issue.
Thanks in advance.
Tbruz

No, the earlier year Explorer rims will not fit. If you find the newer 2020-24 18” PIUs or similar 20-24’ 18” or bigger Explorer wheels they’ll fit.