Recommended tire size... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Dustmaker65** · 10-25-2016, 09:50 PM

I just bought a new set of Rally Wheels. Fronts are 8in. and rears are 10in.

Putting these on a LWB 72 that is under the knife right now. Would like to get as wide as I can in the rear and something that will not rub in the front.

Any suggestions?

bolivier · 10-25-2016, 09:55 PM

I used to run 235/70 up front and 275/60 out back. My ralleys had 295/50 on the back when I got them, but they were just too short. Even with my truck having around a 4/6 drop.

bolivier · 10-25-2016, 10:02 PM

275/60r15 looks just right on an 8" ralley. imo That's what my rears were. 295/50 will probably look just right on the 10s. They are only 26.6 tall though....

**68bowtie** · 10-25-2016, 10:34 PM

i put some of my specs in the thread below. i agree 295's are pretty short so unless you lower the truck they would look a bit funny. be sure and watch your backspacing.

http://67-72chevytrucks.com/vboard/s....php?p=7710662

**68bowtie** · 10-25-2016, 10:43 PM

oh btw i have about 5/8" clearance from the rear tires to the inner fender wells.

**Dustmaker65** · 10-25-2016, 11:03 PM

Quote:

Originally Posted by 68bowtie

be sure and watch your backspacing.

Back spacing is 4.5in. on rears and 4in. on the fronts.

So if the 295's are to short, what would you suggest?

I was looking at a couple tire charts, but really can't figure out what will actually work. From reading threads from my search, I want 29in. in front and 31in. in rear??? This sound right?

**68bowtie** · 10-25-2016, 11:56 PM

what drop are you going for?

**Dustmaker65** · 10-25-2016, 11:58 PM

Quote:

Originally Posted by 68bowtie

what drop are you going for?

Not alot. Planning on using it as a truck. I do have a set of drop spindles I can use???

**68bowtie** · 10-26-2016, 12:08 AM

ok if you're going for stock height you have more options. your best bet is to pick a few tire sizes and search for them on this site, you should come up with some good pictures. i like summit racing for tire selection because you can filter for different widths/diameters, etc.

**Dustmaker65** · 10-26-2016, 12:10 AM

Thanks, I will check Summit out tomorrow.

67ChevyRedneck · 10-26-2016, 08:17 AM

This is an awesome calculator. It will compare/overlap 2 different tire sizes.

https://www.tacomaworld.com/tirecalc

I run 17x7 front and 17x8 rear on my 65 Mustang and 15x7 and 15x8 on the rear of the C10. I was able to get a set of tires that had the right width for the wheels and the front tire was a tad smaller than the rear so they looked right.

You may also want to have a site like discount tire up to check $. You may want a 295/60 for the rear but find they're uncommon and $$ so a 285/60 still fits and is much cheaper (totally using those as an example, I have no idea if any of that is true) or you may find that you want BFG tires but they don't make the size you want for the rear, etc.

For the 8" wheel, a 235/70 or 235/75 is a good starting point.

**Tim Christian** · 10-26-2016, 08:48 AM

235/70/15 front and 285/70/15 rear Silvertown Radials by Coker tire

Benny- · 10-26-2016, 09:36 AM

Quote:

Originally Posted by Tim Christian

235/70/15 front and 285/70/15 rear Silvertown Radials by Coker tire

I second this!

TwoFiftyShifter · 10-26-2016, 10:09 AM

I think a 235 series tire stretches out too much to look good on an 8" rim. Just let my preference. I have a 245 series up front and 265 out back. Both on 8" wheels. I think if I had to do new tires and the same all around, 255/70 or 265/70 would look perfect on rally's.

**Dustmaker65** · 10-26-2016, 10:35 AM

Quote:

Originally Posted by Tim Christian

235/70/15 front and 285/70/15 rear Silvertown Radials by Coker tire

Quote:

Originally Posted by Benny-

I second this!

That looks like the sizes I need! Only thing is, I can not find the 235/70 in the Silvertown design??? I see it with wide white and red line, but no plain black wall.

Thanks!!!

demian5 · 10-26-2016, 11:23 AM

255/60 and 295/60

**Dustmaker65** · 10-26-2016, 04:36 PM

Quote:

Originally Posted by Tim Christian

235/70/15 front and 285/70/15 rear Silvertown Radials by Coker tire

Anyone know if the standard "BFGoodrich White Lettered" tire has the same tread pattern as the "Silvertown" does?

I can find the 285/70 in the Silvertown, but not the 235/70. But I can get the 235/70 in the standard white lettered version.

rsgt · 10-26-2016, 06:17 PM

The fronts are Cooper Cobra GT 255/70/15.
The rears are BFG Long Trail T/A Touring 265/75/15
This is one of the members on here. I think his combination looks just right.

**Dustmaker65** · 10-26-2016, 06:42 PM

Quote:

Originally Posted by rsgt

The fronts are Cooper Cobra GT 255/70/15.
The rears are BFG Long Trail T/A Touring 265/75/15
This is one of the members on here. I think his combination looks just right.

That is a good looking truck!

10-25-2016, 09:50 PM	#1
Dustmaker65 Senior Member Join Date: Jan 2015 Location: Marquette Heights, IL. Posts: 1,135	Recommended tire size... I just bought a new set of Rally Wheels. Fronts are 8in. and rears are 10in. Putting these on a LWB 72 that is under the knife right now. Would like to get as wide as I can in the rear and something that will not rub in the front. Any suggestions? __________________ Jimmy Hoelzel

10-25-2016, 09:55 PM	#2
bolivier Registered User Join Date: Jun 2015 Location: Midwest City Posts: 31	Re: Recommended tire size... I used to run 235/70 up front and 275/60 out back. My ralleys had 295/50 on the back when I got them, but they were just too short. Even with my truck having around a 4/6 drop.

10-25-2016, 10:02 PM	#3
bolivier Registered User Join Date: Jun 2015 Location: Midwest City Posts: 31	Re: Recommended tire size... 275/60r15 looks just right on an 8" ralley. imo That's what my rears were. 295/50 will probably look just right on the 10s. They are only 26.6 tall though....

10-25-2016, 10:34 PM	#4
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,453	Re: Recommended tire size... i put some of my specs in the thread below. i agree 295's are pretty short so unless you lower the truck they would look a bit funny. be sure and watch your backspacing. http://67-72chevytrucks.com/vboard/s....php?p=7710662 __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Survivor "Lil’ Mint" (67 c10 40k mile light green original paint) Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

10-25-2016, 10:43 PM	#5
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,453	Re: Recommended tire size... oh btw i have about 5/8" clearance from the rear tires to the inner fender wells. __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Survivor "Lil’ Mint" (67 c10 40k mile light green original paint) Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

10-25-2016, 11:56 PM	#7
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,453	Re: Recommended tire size... what drop are you going for? __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Survivor "Lil’ Mint" (67 c10 40k mile light green original paint) Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

10-26-2016, 12:08 AM	#9
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,453	Re: Recommended tire size... ok if you're going for stock height you have more options. your best bet is to pick a few tire sizes and search for them on this site, you should come up with some good pictures. i like summit racing for tire selection because you can filter for different widths/diameters, etc. __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Survivor "Lil’ Mint" (67 c10 40k mile light green original paint) Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

10-26-2016, 12:10 AM	#10
Dustmaker65 Senior Member Join Date: Jan 2015 Location: Marquette Heights, IL. Posts: 1,135	Re: Recommended tire size... Thanks, I will check Summit out tomorrow. __________________ Jimmy Hoelzel

10-26-2016, 08:17 AM	#11
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Recommended tire size... This is an awesome calculator. It will compare/overlap 2 different tire sizes. https://www.tacomaworld.com/tirecalc I run 17x7 front and 17x8 rear on my 65 Mustang and 15x7 and 15x8 on the rear of the C10. I was able to get a set of tires that had the right width for the wheels and the front tire was a tad smaller than the rear so they looked right. You may also want to have a site like discount tire up to check $. You may want a 295/60 for the rear but find they're uncommon and $$ so a 285/60 still fits and is much cheaper (totally using those as an example, I have no idea if any of that is true) or you may find that you want BFG tires but they don't make the size you want for the rear, etc. For the 8" wheel, a 235/70 or 235/75 is a good starting point. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 10-26-2016 at 09:07 AM.

10-26-2016, 08:48 AM	#12
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	Re: Recommended tire size... 235/70/15 front and 285/70/15 rear Silvertown Radials by Coker tire

10-26-2016, 10:09 AM	#14
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Re: Recommended tire size... I think a 235 series tire stretches out too much to look good on an 8" rim. Just let my preference. I have a 245 series up front and 265 out back. Both on 8" wheels. I think if I had to do new tires and the same all around, 255/70 or 265/70 would look perfect on rally's. __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!

10-26-2016, 11:23 AM	#16
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: Recommended tire size... 255/60 and 295/60 __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

10-26-2016, 06:17 PM	#18
rsgt Registered User Join Date: Apr 2009 Location: Lowell AR Posts: 360	Re: Recommended tire size... The fronts are Cooper Cobra GT 255/70/15. The rears are BFG Long Trail T/A Touring 265/75/15 This is one of the members on here. I think his combination looks just right. Attached Images __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=698292



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