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how wide of tire on 69 b body

19 69 GTX

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ok got a 69 gtx just wondering what is the widest tires I can fit on a stock 69 rear wheel well. Been out of the b bodies for a bit. I was gonna by a set of quick time Hoosiers 27 11.5 ..15 inch..that's like a 275 60 15. I have 255 60 15 on it now and plenty of room. What is best backspace to have
 
I have 275/60/15 on my road runner with 8" wheels 4.5BS,pleanty of room with the stock ride height,
at the park 003.jpg
 
nice ...seems my springs are original and weak but I still think it should work..wish I could post a pic of mine but can't seem to upload it
 
I got a set of hoosier quick time pro slicks from a buddy with 275 50 15 and they fir great with 4.5 backspace..my springs are weak and original..need new ones
 
car went 8.42 in the 1/8 mile not bad 3.55 gear
 
I like where the rear is at for height! Good looking X, and runs good too.
 
295/50/15 on 10" wide wheels with 5 1/2" back space
clears fine on my 69' bee
 
15x10 with 4.5 backspace and a 295/50/15. The inner fender lip is rolled with plenty of clearance.
 
15x10 with 4.5 backspace and a 295/50/15. The inner fender lip is rolled with plenty of clearance.

5.5" on the back space no need to roll inner fender lip. The 69' bee and a friends 69' sport satellite run 295/50/15 on 10" wheel with no mods or clearance issues.
 
Should have mentioned it is in my 69 roadrunner. Yea with my 4.5 back on my rims is pushed it closer to the inner fender.
 
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