Ideal 20" Tire Size? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Boyd · 02-26-2010, 06:00 PM

I tried searching but had no luck (ok, honestly, I gave up after several tries - the "must wait 60 seconds between searches" thing was annoying)

I will be running a static 5.5" drop in front (2.5" spindle, 3" coil) and 5" coils in rear.

I've never had 20" wheels before and I'm curious what the best tire size is? The combo I'm looking at getting is 255/40f and 285/40r but I'm concerned about the sidewall height, I don't want the rubber band look.

Anyone have pics of a 40 series tire? What about a 45? Thanks in advance.

Nova70 · 02-26-2010, 06:06 PM

Google is your friend

big_al_71 · 02-26-2010, 06:14 PM

295.45.20 In the rear......definetly plenty of side wall with six inch drop...

72BlckButy · 02-26-2010, 09:58 PM

Quote:

Originally Posted by Nova70

Google is your friend

Do you have the specs for this truck you found on google?

Nova70 · 02-27-2010, 01:24 AM

Quote:

Originally Posted by 72BlckButy

Do you have the specs for this truck you found on google?

Tires are Toyo proxy 255/40/20 and 295/40/20.... First picture in google images if you type in 255/40/20.

nastyc10 · 02-27-2010, 12:24 PM

Quote:

Originally Posted by Nova70

Tires are Toyo proxy 255/40/20 and 295/40/20.... First picture in google images if you type in 255/40/20.

I'm running these tires, same size. Just enough sidewall.

HarrolLS1 · 02-27-2010, 04:54 PM

[QUOTE=Nova70;3827028]Google is your friend

[/QUOTE

I have the specs in my "Stance" folder:

4.5"/7 drop.
Front: 2.5" spindles 2" springs
Rear: 5" springs 2" blocks
20x8.5 & 20x10
255/40/20 & 295/40/20

**lolife99** · 02-26-2010, 06:22 PM

Hey Al,... those rear tires look big!
Are you sure they aren't 295/45-20's?
They look bigger than my KDW 295-40-20's.

big_al_71 · 02-26-2010, 06:59 PM

Quote:

Originally Posted by lolife99

Hey Al,... those rear tires look big!
Are you sure they aren't 295/45-20's?
They look bigger than my KDW 295-40-20's.

you know what keith? now you got me thinking, when I get home tonight I am going to triple check.
I am such a dummy all this time I never realized that they are 295-45-20

Strut · 02-26-2010, 07:08 PM

Here is a tire size calculator you can use:

http://www.miata.net/garage/tirecalc.html

Just put your tire size in and it will tell you what you want to know.....

*vegaschevy* · 02-26-2010, 07:17 PM

my KDWs look that big in that size. it could be because the fornt is an 18" it gives it an illusion

72BlckButy · 02-27-2010, 10:44 AM

Thanks for the info Nova70!

72BlckButy · 02-27-2010, 05:32 PM

Harrol... thank's for the specs! I went to try and locate the specs but wasn't able too.

02-26-2010, 06:00 PM	#1
Boyd Resident Lurker Join Date: Apr 2005 Location: Forney, TX Posts: 205	Ideal 20" Tire Size? I tried searching but had no luck (ok, honestly, I gave up after several tries - the "must wait 60 seconds between searches" thing was annoying) I will be running a static 5.5" drop in front (2.5" spindle, 3" coil) and 5" coils in rear. I've never had 20" wheels before and I'm curious what the best tire size is? The combo I'm looking at getting is 255/40f and 285/40r but I'm concerned about the sidewall height, I don't want the rubber band look. Anyone have pics of a 40 series tire? What about a 45? Thanks in advance.

02-26-2010, 06:06 PM	#2
Nova70 Registered User Join Date: Jun 2009 Location: Dub VC Utah Posts: 364	Re: Ideal 20" Tire Size? Google is your friend __________________ '70 K10-- 4" lift on 35"s-- For Sale http://www.ksl.com/index.php?sid=733...iew&ad=4578305

02-26-2010, 06:14 PM	#3
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: Ideal 20" Tire Size? 295.45.20 In the rear......definetly plenty of side wall with six inch drop... Attached Images __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild Last edited by big_al_71; 02-26-2010 at 09:30 PM.

02-27-2010, 04:54 PM	#7
HarrolLS1 Registered User Join Date: Jul 2005 Location: Saint Simons Island,Georgia Posts: 230	Re: Ideal 20" Tire Size? [QUOTE=Nova70;3827028]Google is your friend [/QUOTE I have the specs in my "Stance" folder: 4.5"/7 drop. Front: 2.5" spindles 2" springs Rear: 5" springs 2" blocks 20x8.5 & 20x10 255/40/20 & 295/40/20 __________________ Harrol 1968 SWB 1968 SWB 4x4 1969 Suburban 1970 LWB 1970 Blazer 2002 Tahoe Inside every older person is a younger person wondering what happened

02-26-2010, 06:22 PM	#8
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Ideal 20" Tire Size? Hey Al,... those rear tires look big! Are you sure they aren't 295/45-20's? They look bigger than my KDW 295-40-20's. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 02-26-2010 at 06:23 PM.

02-26-2010, 07:08 PM	#10
Strut Registered User Join Date: Oct 2009 Location: Corbin Ky Posts: 247	Re: Ideal 20" Tire Size? Here is a tire size calculator you can use: http://www.miata.net/garage/tirecalc.html Just put your tire size in and it will tell you what you want to know..... __________________ 1972 Chevy C10 SWB 1999 GMC Sonoma Mini 2008 Yamaha R1 2007 Harley Nightster

02-26-2010, 07:17 PM	#11
vegaschevy Account Suspended Join Date: May 2009 Location: las vegas nv Posts: 1,493	Re: Ideal 20" Tire Size? my KDWs look that big in that size. it could be because the fornt is an 18" it gives it an illusion

02-27-2010, 10:44 AM	#12
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Ideal 20" Tire Size? Thanks for the info Nova70! __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

02-27-2010, 05:32 PM	#13
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Ideal 20" Tire Size? Harrol... thank's for the specs! I went to try and locate the specs but wasn't able too. __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

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