what rim offset should i use on my 1978 bronco?

[bronco78guy]

i am having trouble finding the rim offset that other people use for their trucks. i am wanting a 15x10 inch rim, putting 33x12.50r15s on them. i dont want rubbing when at full turn and when at articulation. please help me try and find the best offset that you guys use. thanks

 

[Motech]

Hey there @bronco78guy welcome to the forum! In time you will get a LOT of great value from this place. Personally, 78-79 Gen 2 is my favorite Bronco look. Someday...

Anyhow, swapping out for wider wheels and bigger tires, I don't know that offset is your most important dimension. That is the measurement of the inside mounting surface to the centerline of the rim. You might want to go with the backspace measurement, from the inside mounting surface to the inner wheel lip. You can measure that yourself pretty accurately, as shown below along with the difference between the two:





A quick Bing search for 1978 Bronco rim offset brought up this link in the third sample:

rim backspacing

is 3.75 the normal backspacing to use?

www.broncozone.com

Which validates my "great value from this place" claim up top there.

I'm sure folks better equipped to answer your question will chime in, and probably direct you to the new member introduction section too. Be sure and post some pics of your classic too!