Anyone with a mounted 315/35/20??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jkade · 01-12-2008, 10:57 AM

I need to know how tall the sidewall is when mounted on a rim.
Thanks

jkaylor68gmc · 01-12-2008, 11:00 AM

I want 315s!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

jkade · 01-12-2008, 11:16 AM

Quote:

Originally Posted by jkaylor68gmc

I want 315s!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Yeah you and me, I am going to run them but I need to know the sidewall height so I can pick out me a front tire. I don't want more sidewall on the front than I have on the rear.

Musclerodz · 01-12-2008, 12:22 PM

315mm x 35%= sidewall in mm. then convert to inches.

Mike

gringoloco · 01-12-2008, 01:17 PM

That tire is 28.68" tall. For a 20" front, use a 255/40-20 = 28.03" tall. For an 18" wheel 255/40-18 will be 26.03...

jkade · 01-12-2008, 02:28 PM

So how tall is the side wall again?

Thanks guys.

lofly'a · 01-12-2008, 04:51 PM

go here and you can plug in any size you like for specs.
http://www.rims-n-tires.com/info_specs.

jkade · 01-13-2008, 03:49 AM

Quote:

Originally Posted by lofly'a

go here and you can plug in any size you like for specs.
http://www.rims-n-tires.com/info_specs.

Now that is helpful info, I usually go to tire rack and enter the size and waste a bunch of time looking throught the tire specs but that is fast.
Thanks

jkade · 01-13-2008, 04:28 AM

The bad part is now finding a front tire to match the rear. I can get toyo proxes s/t in a 315 for $206 a piece but they don't have that tread in the 255.

Ackattack · 01-13-2008, 06:27 AM

I'm planning on running this size of tire too. Did you have to modifiy the wheel wells to get them to fit?

jkade · 01-13-2008, 06:33 AM

Quote:

Originally Posted by Ackattack

I'm planning on running this size of tire too. Did you have to modifiy the wheel wells to get them to fit?

I am going to run tubs like the ones below, they are going to be real tight in a stock tub and the backspacing on the wheels would have to be dead on and they still might not work. I know the 295/40/20 is about as big as I want to go with a stock tub.

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Name: RoundTubswithHexNotchCover.jpg
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Size: 63.4 KB

abadsvt · 01-13-2008, 06:39 AM

Here is the tire size calculator that i use. It is the best one yet. You can compare two size of tires. It even tells you the difference the speedometer will be when you compare two tire sizes. From original to the new tire size. Its pretty sweet.

Josh

ps. That is a big A$$ tire but i bet it will look sweet

Ackattack · 01-13-2008, 07:19 AM

Quote:

Originally Posted by jkade

I am going to run tubs like the ones below, they are going to be real tight in a stock tub and the backspacing on the wheels would have to be dead on and they still might not work. I know the 295/40/20 is about as big as I want to go with a stock tub.

Attachment 327919

I didn't think they'd fit in te stock tubs.

I'm going to splice 2 tubs together to get an extra inch or 2.

jkade · 01-13-2008, 07:46 AM

Quote:

Originally Posted by Ackattack

I didn't think they'd fit in te stock tubs.

I'm going to splice 2 tubs together to get an extra inch or 2.

I am pretty sure a 315 won't since a 295 barley does.

Slammed70 · 01-13-2008, 08:05 AM

Mounted on what....

chevy50 · 01-13-2008, 08:07 AM

If you go to www.project33.com and then to calulations tool ,there is a tire size calulator there.Very cool site about a build on 33 ford coupe

jkade · 01-13-2008, 09:04 AM

Quote:

Originally Posted by Slammed70

Mounted on what....

Side view please

SCOTI · 01-13-2008, 03:21 PM

Quote:

Originally Posted by jkade

The bad part is now finding a front tire to match the rear. I can get toyo proxes s/t in a 315 for $206 a piece but they don't have that tread in the 255.

They list a 255/40-20 in the same product line stats.....
http://www.toyo.com/docs/tires/tires...=lgt-suv-truck

A 315 isn't going to fit stock tubs on an 11" + wide wheel unless the truck isn't real low & the outer edge of the tire sits flush w/the fender lip (so no tuckin' tire). 295's on 10's would work w/the right BS, tight suspension, & consistent body-panel/chassis gapping.

Slammed70 · 01-13-2008, 03:34 PM

Quote:

Originally Posted by jkade

Side view please

jkade · 01-13-2008, 03:49 PM

Quote:

Originally Posted by SCOTI

They list a 255/40-20 in the same product line stats.....
http://www.toyo.com/docs/tires/tires...=lgt-suv-truck

A 315 isn't going to fit stock tubs on an 11" + wide wheel unless the truck isn't real low & the outer edge of the tire sits flush w/the fender lip (so no tuckin' tire). 295's on 10's would work w/the right BS, tight suspension, & consistent body-panel/chassis gapping.

Scoti, I was looking for a 18" front tire but they are real expensive if you try to get a matching set in 18 and 20's. Fot the price of tires may have to go 20 and 20. I was just trying to use the 18x10 grey spokes my brother has but that may not work and I have to buy 4 wheels instead of 2. Thanks for looking for me though.

Grande Rojo · 01-17-2008, 07:16 AM

I run a 315/35/20 on the rear and a 245/40/20 up front. The front is just a hair shorter. The Treads dont match but it does bother me.
They are on my 86' with 12" wide wheels they fit with very little trimming.

01-12-2008, 10:57 AM	#1
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,519	Anyone with a mounted 315/35/20??? I need to know how tall the sidewall is when mounted on a rim. Thanks

01-12-2008, 11:00 AM	#2
jkaylor68gmc Senior Member Join Date: Dec 2005 Location: TN Posts: 2,448	Re: Anyone with a mounted 315/35/20??? I want 315s!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! __________________ 1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride

01-12-2008, 12:22 PM	#4
Musclerodz Senior Member Join Date: Aug 2005 Location: OKC, OK Posts: 2,365	Re: Anyone with a mounted 315/35/20??? 315mm x 35%= sidewall in mm. then convert to inches. Mike __________________ Mike Redpath

01-12-2008, 01:17 PM	#5
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Anyone with a mounted 315/35/20??? That tire is 28.68" tall. For a 20" front, use a 255/40-20 = 28.03" tall. For an 18" wheel 255/40-18 will be 26.03... __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

01-12-2008, 02:28 PM	#6
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,519	Re: Anyone with a mounted 315/35/20??? So how tall is the side wall again? Thanks guys.

01-12-2008, 04:51 PM	#7
lofly'a Registered User Join Date: May 2000 Location: Alexandria, LA 71301 Posts: 1,451	Re: Anyone with a mounted 315/35/20??? go here and you can plug in any size you like for specs. http://www.rims-n-tires.com/info_specs. __________________ -02 avalanche (daily driver) -66 gto ragtop 389/400 (garage queen, hand-me-down from dad) -72 Tribute Trans Am (6.0LS/T56 6-speed) in progress -2003 YUKON (Wife's) -71 gmc swb fleet (current project, gonna shave everything, bags, stuff w/ 20's, gen III powertrain) -48 3100 SWB - 12/31/23 LONG TERM Project

01-13-2008, 04:28 AM	#9
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,519	Re: Anyone with a mounted 315/35/20??? The bad part is now finding a front tire to match the rear. I can get toyo proxes s/t in a 315 for $206 a piece but they don't have that tread in the 255.

01-13-2008, 06:27 AM	#10
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	Re: Anyone with a mounted 315/35/20??? I'm planning on running this size of tire too. Did you have to modifiy the wheel wells to get them to fit? __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

01-13-2008, 06:39 AM	#12
abadsvt Senior Member Join Date: Aug 2006 Location: Atascadero, CA Posts: 1,152	Re: Anyone with a mounted 315/35/20??? Here is the tire size calculator that i use. It is the best one yet. You can compare two size of tires. It even tells you the difference the speedometer will be when you compare two tire sizes. From original to the new tire size. Its pretty sweet. Josh ps. That is a big A$$ tire but i bet it will look sweet __________________ (Project truck) 1970 C10 under complete transformation My current build thread http://67-72chevytrucks.com/vboard/s...d.php?t=212871 Other project: C5 corvette swap into 70 c10 http://67-72chevytrucks.com/vboard/s...=1#post2413517 On Hold

01-13-2008, 08:07 AM	#16
chevy50 New Member Join Date: Apr 2006 Location: west virginia Posts: 29	Re: Anyone with a mounted 315/35/20??? If you go to www.project33.com and then to calulations tool ,there is a tire size calulator there.Very cool site about a build on 33 ford coupe

01-17-2008, 07:16 AM	#21
Grande Rojo paper or plastic? Join Date: Nov 2002 Location: SW Missouri Posts: 671	Re: Anyone with a mounted 315/35/20??? I run a 315/35/20 on the rear and a 245/40/20 up front. The front is just a hair shorter. The Treads dont match but it does bother me. They are on my 86' with 12" wide wheels they fit with very little trimming. __________________ 1967 Chevy SWB 250 http://67-72chevytrucks.com/vboard/s...d.php?t=442157 1977 Chevy SWB 454 No More 454 getting 5.3 http://67-72chevytrucks.com/vboard/s...d.php?t=310518 1977 Stepside Truck of the month winner http://67-72chevytrucks.com/vboard/s...d.php?t=135524 1965 Chevy C10 454 http://67-72chevytrucks.com/vboard/s...d.php?t=731372 1975 Dodge Power Wagon http://67-72chevytrucks.com/vboard/s...=1#post7871388

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