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Old 04-22-2020, 10:23 AM   #1
Android04
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Tire Suggestions - Help

Good morning and hope everyone is staying healthy and safe.

So I will be running a 15x8 in the rear and a 255/60, and a 15x6 front rim. I originally considered running a 225/60 up front but I'm not sure if I will like the height of the tire compared to the rear. So the only other option Diamond Back offers would be a 215/70, and I'm afraid it will look too skinny.

Truck is a 65 SWB on air ride. I originally had 235/70 all the way around but switched to wider wheels in the back and wanted to put new whitewalls on all the way around. Thoughts, suggestions?

Am I just overthinking the height by looking at the tires off the rim?
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Old 04-22-2020, 11:54 AM   #2
Clyde65
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Re: Tire Suggestions - Help

That 6” wheel might be a problem if you have disc brakes, go with a 7” or 8” if possible.

I run a 235/70/15 on 7” rally up front, then 275/60/15 on 8” rally in back, I have drop spindles/coils and rear airbags
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Old 04-22-2020, 12:10 PM   #3
Android04
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Re: Tire Suggestions - Help

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Originally Posted by Clyde65 View Post
That 6” wheel might be a problem if you have disc brakes, go with a 7” or 8” if possible.

I run a 235/70/15 on 7” rally up front, then 275/60/15 on 8” rally in back, I have drop spindles/coils and rear airbags
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I'm currently still on drums for now. Do you have a side view of your truck?
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Old 04-22-2020, 01:38 PM   #4
The Rocknrod
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Re: Tire Suggestions - Help

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Originally Posted by Android04 View Post
I'm currently still on drums for now. Do you have a side view of your truck?
http://67-72chevytrucks.com/vboard/s...=770801&page=3
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Old 04-22-2020, 02:32 PM   #5
Android04
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Re: Tire Suggestions - Help

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Thanks. It doesn't seem like the 70 in the front and 60 in the rear has that big of a difference.
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Old 04-22-2020, 02:38 PM   #6
pinturbo75
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Re: Tire Suggestions - Help

front is 225-70-15 on 7 inch wheel, 2 3/4 inch ww
rear is 275-60-15 on 8 inch wheel, 3 inch ww
all tires are diamondback.
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Old 04-22-2020, 02:45 PM   #7
Android04
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Re: Tire Suggestions - Help

Perfect! Thanks so much for the visual and beautiful truck
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Old 04-23-2020, 02:31 PM   #8
SCOTI
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Re: Tire Suggestions - Help

Quote:
Originally Posted by Android04 View Post
Good morning and hope everyone is staying healthy and safe.

So I will be running a 15x8 in the rear and a 255/60, and a 15x6 front rim. I originally considered running a 225/60 up front but I'm not sure if I will like the height of the tire compared to the rear. So the only other option Diamond Back offers would be a 215/70, and I'm afraid it will look too skinny.

Truck is a 65 SWB on air ride. I originally had 235/70 all the way around but switched to wider wheels in the back and wanted to put new whitewalls on all the way around. Thoughts, suggestions?

Am I just overthinking the height by looking at the tires off the rim?
215/70 is closest to the rear by comparison.

255/8 = 31.875
31.875 x 6 = 191.25
While a 205 is closest, the 215 you mentioned is a closer match of rubber per inch of wheel width vs. the 225.


255 x 60% = 6.02" sidewall height (27.04" OD)

215 x 70% = 5.92" sidewall height (26.85" OD).
The height is slightly shorter vs. the rear but still fills the wheel opening vs an even shorter 225/60 @ 25.63" OD.

The heights are based off of calculations & will vary slightly depending on the tire manufacturer.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
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Cubic inches is like Indiana Jones with a cheap pistol.

Last edited by SCOTI; 04-23-2020 at 02:38 PM.
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Old 04-23-2020, 04:28 PM   #9
Android04
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Re: Tire Suggestions - Help

Scoti - thank you for the break down. I spoke with Diamond Back and they are sending me out the 215's and I'm sending back the 225's. I look forward to seeing this thing back down on the ground.
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Old 04-23-2020, 04:42 PM   #10
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Re: Tire Suggestions - Help

Quote:
Originally Posted by Android04 View Post
Scoti - thank you for the break down. I spoke with Diamond Back and they are sending me out the 215's and I'm sending back the 225's. I look forward to seeing this thing back down on the ground.
No problem.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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