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Old 12-25-2017, 03:17 PM   #1
Freeman69
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Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Just picked up a 69 c10 SWB and have been shopping wheels and tires until they all look the same, here is my question,

I know that 255/40r18 is a popular front size and 275/40r18 for the rear but has anyone ever ran a 275/40r18 front and rear? I'm looking at an american racing 18x9 set of wheels all the way around. Has anyone ever been successful or unsuccessful in this matter?

They don't make the wheels i want in staggered sizing and i don't know how it would look running a skinnier front tire on the same size rims.

As for suspension i am going Ridetech street grip and motor will be a 5.3 LM7 on boost with a 4l80e. Body is all original patina and rusty nuts.

Appreciate the information,

Hayden
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Last edited by Freeman69; 12-26-2017 at 10:26 AM.
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Old 12-25-2017, 03:52 PM   #2
52napco
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

I'm running a 245 35 in front and 295 40 in the rear 18x9.5 front and 18x11 rear. Really need a 40 in front also

Last edited by 52napco; 12-25-2017 at 03:59 PM.
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Old 12-25-2017, 03:57 PM   #3
Freeman69
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Quote:
Originally Posted by 52napco View Post
I'm running a 245 35 in front and 295 40 in the rear 18x9.5 front and 18x11 rear. Really need a 40 in front also
Do you touch inner fenders? Where are the main clearances issues? Pictures?
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Old 12-25-2017, 04:06 PM   #4
52napco
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

No known issues and my phone crashed last week and lost a ton of pics.this is the only one I have left
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Old 12-26-2017, 09:29 AM   #5
68Stepbed
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

I'm running 18x9.5 with 285/40/18s on all four corners.



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68 C10 stepside, LS1/700R4, TCI Engineering suspension system
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Old 12-26-2017, 10:23 AM   #6
Freeman69
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Quote:
Originally Posted by 68Stepbed View Post
I'm running 18x9.5 with 285/40/18s on all four corners.




Killer Stance on that, Exactly what i'm going for more bulldog stance than Drag Racer style, Just with a Fleetside.
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Old 12-26-2017, 12:47 PM   #7
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Depending on backspacing, the front lip of the lower control arm will need to be trimmed for clearance.
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Old 12-27-2017, 05:03 AM   #8
bbrriiaann1973
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

I have

295/50r15 in front
325/50r15 in back

I use to have 20s front and back but ride and grip was terrib8
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Old 12-27-2017, 05:05 AM   #9
bbrriiaann1973
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

325/50r15
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Old 12-27-2017, 08:11 AM   #10
Freeman69
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Quote:
Originally Posted by bbrriiaann1973 View Post
I have

295/50r15 in front
325/50r15 in back

I use to have 20s front and back but ride and grip was terrib8
What type of suspension are you running? Thank you for your reply.
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Old 12-27-2017, 08:23 AM   #11
bbrriiaann1973
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Total stock! Front and back. No rub either wheel. I am very happy with them. Handling is much much better and rear grip is amazing!
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Old 12-27-2017, 08:24 AM   #12
bbrriiaann1973
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Rear view
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Old 12-27-2017, 08:31 AM   #13
Freeman69
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

Quote:
Originally Posted by bbrriiaann1973 View Post
Total stock! Front and back. No rub either wheel. I am very happy with them. Handling is much much better and rear grip is amazing!
Awesome! Last question and again I appreciate the responses what width wheels are you running?
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Old 12-27-2017, 08:38 AM   #14
bbrriiaann1973
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Re: Anyone running 275/40r18’s on front and rear? 1969 c10 swb

15x8 front
15x10 rear
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