67 barracuda 275 60 15

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Slantsix64 said:
I was thinking on a 14 inch rim, but i might just run my 215 70 14 on a 6 inch rim or now, my brother has 225 60 15x6 in his front.
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I use this link to figure tire size.

Tire Size Calculator

The 215/70-14 tires are 25.9" diameter and 8.5" wide
The 235/60-14 tires are 25.1" diameter and 9.3" wide

The 205/70-15 tires I ran were 26.3" diameter and 8.1" wide.

Being your using a 14" wheel I would think the 235/60-14 tire would work. It should clear the fender lip, the extra width I think would be okay, but I don't have any experience with messing with wider tires in the front, I mainly just messed with diameter. As in my other post I only tried 2 tires, different manufactures, but tires aren't always 100% to the spec on the link, but gets you close.
 
72bluNblu said:
15x8 with a 4.5" backspace with 275's is basically the recipe for an A-body 8 3/4 that's been converted to BBP axles.

With a SBP 8 3/4 it's a little too much backspace, you would be better off with 4.25" or even 4" on a 15x8" with 275's. Basically 4.5" is too much, 4.25" would be great, 4" is borderline not enough. If you get the 15x8 with 4.5" of backspace and run 275's with SBP axles you'll almost certainly need a spacer.
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My buddy asked me he has a 15x7 with 4.25 with SBP axles 8.75 would a 275 60 15 fit in his 69 barracuda?
 
Slantsix64 said:
My buddy asked me he has a 15x7 with 4.25 with SBP axles 8.75 would a 275 60 15 fit in his 69 barracuda?
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Probably not?

First, a 275/60/15 isn’t supposed to be mounted on a 7” wide rim. Cue a whole bunch of guys saying they’ve done dumber stuff than that and haven’t died yet. But whatever, that’s what BFG says so take it for what it’s worth, they’d probably rather sell you tires than not and that’s still their recommendation.

As for the 15x7” with the 4.25” backspace- that’s the same offset (+6) as a 15x8 with a 4.75” backspace, which definitely won’t work. Those wheels have the same centerline (same offset). So sure, the backspace is less but the tire will hang over the rim more. Will it be squeezed because of the narrower rim? Yes. Will it be enough to work? Haven’t tried it. My suspicion is no, but I don’t know exactly how much those tires will be squeezed.
 
Anyone have any suggestions for 17" wheel and tire combo for a notch back barracuda? It has stock rear springs on a drum 8 1/4 with disc break conversion up front, both have a BBP.
 
moparstud440 said:
1969 Barracuda
Drum brakes all around, factory 8 3/4 rear (not sure what year the rear is though)
Fronts 15x6 4" backspacing with 205/70R15
Rear 15x8 4 1/2" backspacing with 275/60R15

Fronts were a little close during turning (approx 1/4" between tire and bottom of fender so I rolled the bottom 2" of the inside lip to get 1/2" clearance). If I had to do over again I'd went with a 215/65R15 tire.

Rears had to had a 1/4" spacer to get 1/2" space between tire and leaf spring.


View attachment 1715472759
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NiZZZZZZe!
 
67notchb said:
Anyone have any suggestions for 17" wheel and tire combo for a notch back barracuda? It has stock rear springs on a drum 8 1/4 with disc break conversion up front, both have a BBP.
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What’s the 8.25” out of?

With 17’s you can go as wide as a 17x8 up front with up to about 5.6” of backspace, that can handle up to a 255/45/17 although that’s probably too tall (26.1”) for a barracuda without modifications to the lower front corner of the fender. 245/45/17 should work.

In the back if the 8.25 is from an A-body your max backspace is about 4.75”, 4.5” is probably better. The A-body 8.25’s are narrower than A-body 8 3/4’s. With a barracuda you should be able to fit up to a 275/45/17 on a 17x9.
 
thanks for the reply’s. I am not sure what the read end came out of but it works for now. I’d go smaller to be sure there were no issues, I was considering nitto or BFG 245/45/17 as I’ve heard others recommend them for the front. 275/45/17 Seem a little big but I’ll check the out. Anyone have any pictures?
 
Just for possible comparison, my 67 coupe has SBP Cragars, 225/60/15 Falkens on 15x7 wheels up front, 235/60/15 BF Goodrich drag radials on 15x8 rears. The drag radials are about worn out. I plan to go bigger on the rear tires, haven't decided yet whether 255/60/15s, or 275/60/15s or 275/50/15s. Right now kinda leaning I think towards 275/60 Nittos. I need to check the rear wheel backspacing, as I don't remember what it is.

DSCF0219.jpg
 
SGBARRACUDA said:
That is what I have on my 68. 275x60 x15 Nitto Drag radials.

View attachment 1715685233
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Yep, and you're a big reason I just sprung for the Nittos. From JEGS. I had been concerned that the 275/60's might a little taller than I wanted, but they look right on yours and, according to the published specs, they are only half an inch taller than the 255/60 M/T's. Plus the Nitto's have a V speed rating and are cheaper than the M/T's.

By the way, nice looking Barracuda you have there.
 
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