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Widest tire on a 72

Uth clar

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Mar 19, 2018
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Has anybody used a 15 inch, 10 inch wide, with a 3.75 BS on the rear of a 72 roadrunner?
 
Seems like it wouldn’t be enough BS, you can make a template out of cardboard and get a pretty good idea of how it would fit.
 
Think I have a set but have never tried them. Better be some short tires or mini tubed to get anything 15x10 under there. Have done it with 4" bs and 24" tall tires.
 
I'd measure it out . I don't see an issue I had 18"X9 on the rear with what I remembered being a decent about of room left !
 
I have 295 50 15s on the rear (11.6 inches wide) on my 72 RR. It's a close fit but it works. Not sure of the backspacing though.
 
10" on the rear must use the correct backspace and best way is to get underneath and take a couple simple measurements since every car is a little different.
This calculator is great:
http://www.rimsntires.com/specspro.jsp
 
watch this video He tells you the tire size on the car.
 
You can fit a 15x10 with 5.5 BS under 71-2 B-Body's.
Ron
72sat2 (Large).jpg
72sat25 (Large).jpg
 
I'm running 295/40/ZR 20's in the rear without issue. The 18's up front however, different story as they will rub if I cut it too hard. Not sure about the BS'ing. Just reached out to the previous owner to ask...

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