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  1. #1
    Registered User tunejunkie's Avatar
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    full size spare question

    i've got a lifted f150 with 35's, and am trying to get a full size spare. this is bit of a dumb question, but i'm rying to understand the geometry of it

    Can i just throw a matching size tire on the existing spare wheel? will the fact that the offset won't match matter?

    my aftermarket wheels are 0 offset, and i believe the spare is +44 or something.

    or should I just buy a beater wheel with the same offset and throw the tire on that ? ( i dont want to buy a matching wheel to my set of 4, as this will literally only be a spare to get me out of a jam)
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    test the limits RobParks2M's Avatar
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    In to know. I was wondering about this as well as I just upgraded to slightly bigger wheels/level
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  3. #3
    Registered User 10w30's Avatar
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    Originally Posted by tunejunkie View Post
    i've got a lifted f150 with 35's, and am trying to get a full size spare. this is bit of a dumb question, but i'm rying to understand the geometry of it

    Can i just throw a matching size tire on the existing spare wheel? will the fact that the offset won't match matter?

    my aftermarket wheels are 0 offset, and i believe the spare is +44 or something.

    or should I just buy a beater wheel with the same offset and throw the tire on that ? ( i dont want to buy a matching wheel to my set of 4, as this will literally only be a spare to get me out of a jam)
    The offset is measured in millimeters. 44mm is roughly 1.75 inches.

    If the offset is +positive it will bring the inside of the wheel closer to the frame/chassis.

    As long as you measure and check if there is clearance at the tire height/width needed you should have no problem using the spare wheel to get you out of a jam.


    Last edited by 10w30; 07-11-2020 at 05:21 PM.
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  4. #4
    drink more water amikaelmorris's Avatar
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    realistically the only thing offset is going to change is the possibility of rubbing on the frame/something when you're at/near full lock steering. if the +44 doesn't rub on the brake caliper (which it obviously won't since it's a stock wheel) you'd be fine with it. it just might potentially rub at full lock but that doesn't really matter if you're just trying to get home
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