4/6 drop 20" wheels tire size and actual size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*vegaschevy* · 08-13-2009, 11:34 PM

I am really wondering what is the actual brand, size and actual overall height of each of the tires front and back with those running a 4/6 drop.
I am going to do a 4/6 drop with 20" wheels and a 255 front and 285 rear. Going to try for a 45 series tire but it may be to tall. This way actual tire size and actual tire height might help make my decision between brands and actual size.
Of course a pic is cool if you want too.

69gmcshorty · 08-14-2009, 12:19 AM

you are still going to have in consistancies in the exact size. with the size say online they measure the tires mounted on a wheel. i can put my 255/35/20 on any wheel 8.5 to 10" wide not saying that i would but you can. and that will give you differences in height and width. different brands will give different sizes, some are casing size diff. and some are measured on diff width wheels. you can do the math and find out what tire size measures what and get an idea. hope this some what helps.

*vegaschevy* · 08-14-2009, 12:43 AM

Quote:

Originally Posted by 69gmcshorty

you are still going to have in consistancies in the exact size. with the size say online they measure the tires mounted on a wheel. i can put my 255/35/20 on any wheel 8.5 to 10" wide not saying that i would but you can. and that will give you differences in height and width. different brands will give different sizes, some are casing size diff. and some are measured on diff width wheels. you can do the math and find out what tire size measures what and get an idea. hope this some what helps.

right. but if i know your drop, tire size, and actual size i can take an actual size and compare brands by actual tire size to see what works and what does not.

I want to run a good size tire on the rear and not rub in the front. I think in the rear you will be able to run a 30" tall tire no problem with a 6" drop. On the front i think youll need to stay closer to 29.5 with optimum rim spacing.

69gmcshorty · 08-14-2009, 12:58 AM

ok i have 3" drop control arms 2" drop coils and s.u.a in the rear. i have toyo T1R 255/35/20 tires that measure mounted on a 9.5 wheel that i have is 27.02 tall by 10.03 wide and that is all around. I had 3" drop coils and the same size tire and they rubbed everywhere

*vegaschevy* · 08-14-2009, 01:08 AM

Quote:

Originally Posted by 69gmcshorty

ok i have 3" drop control arms 2" drop coils and s.u.a in the rear. i have toyo T1R 255/35/20 tires that measure mounted on a 9.5 wheel that i have is 27.02 tall by 10.03 wide and that is all around. I had 3" drop coils and the same size tire and they rubbed everywhere

That is kind of my take on what I have been finding. a 4/6 drop could handle a 28.5" tire in the front. Makes sense with your 5" drop your clearing a 27" tall tire. .

*vegaschevy* · 08-14-2009, 01:23 AM

i can find this tire in a 245/40-20 for the front
Falken Azenis ST-115

For the rear it is a 295/40-20

Falken Ziex S/TZ01

THis front tire measures 27.7" tall and is 9.6" wide on a 8.5" rim

The rear tire is 29.3" tall and is 11.9" wide on a 10.5" rim

What do you think? It is not easy to find tires in these sizes. I would want to run the largest possible tire from and rear while keeping overall circumference close to each other. maybe a little larger on the rear

matthufham · 08-15-2009, 10:41 AM

4.5/6 drop on 245/35/20 front and rear

**lolife99** · 08-15-2009, 11:16 AM

My 245/40-20's measure 27" tall. I think a 28.5" tire would be too tall.
The key will be using a wheel with the correct backspacing to "tuck" the rim.

**lolife99** · 08-15-2009, 11:17 AM

Tirerack.com has a sale on 295/40's and 245/40's right now. They are BFG's KDW tires.

smoked68 · 08-15-2009, 05:13 PM

4/7 drop with 20x8 Eagle Alloys and 275/45 Falken STZ04's all around w/ zero rubbing. Hopefully going to 295's rear soon and baggin it.

BB72CHEVKT · 10-09-2009, 05:29 PM

anyone else?

big_al_71 · 10-09-2009, 07:25 PM

255-50-18 up front 295-40-20 in the rear continentals.....

**N2TRUX** · 10-09-2009, 09:14 PM

Quote:

Originally Posted by lolife99

Tirerack.com has a sale on 295/40's and 245/40's right now. They are BFG's KDW tires.

Thats a pretty good combo...

jkade · 10-09-2009, 09:44 PM

245/40/20 front and 295/40/20 rear took those wheels and tires and put them on the truck before I sold it. That was about a 4/6 drop.

Doug's68SS · 10-10-2009, 10:20 PM

I like the 18/20 setup and I like your wheels what kind are they

08-13-2009, 11:34 PM	#1
vegaschevy Account Suspended Join Date: May 2009 Location: las vegas nv Posts: 1,493	4/6 drop 20" wheels tire size and actual size I am really wondering what is the actual brand, size and actual overall height of each of the tires front and back with those running a 4/6 drop. I am going to do a 4/6 drop with 20" wheels and a 255 front and 285 rear. Going to try for a 45 series tire but it may be to tall. This way actual tire size and actual tire height might help make my decision between brands and actual size. Of course a pic is cool if you want too.

08-14-2009, 12:19 AM	#2
69gmcshorty Registered User Join Date: Jun 2009 Location: Eugene, Oregon Posts: 104	Re: 4/6 drop 20" wheels tire size and actual size you are still going to have in consistancies in the exact size. with the size say online they measure the tires mounted on a wheel. i can put my 255/35/20 on any wheel 8.5 to 10" wide not saying that i would but you can. and that will give you differences in height and width. different brands will give different sizes, some are casing size diff. and some are measured on diff width wheels. you can do the math and find out what tire size measures what and get an idea. hope this some what helps. __________________ 1969 gmc swb 5/7ish drop, 350/th400, 20x8.5 F.20x10" R

08-14-2009, 12:58 AM	#4
69gmcshorty Registered User Join Date: Jun 2009 Location: Eugene, Oregon Posts: 104	Re: 4/6 drop 20" wheels tire size and actual size ok i have 3" drop control arms 2" drop coils and s.u.a in the rear. i have toyo T1R 255/35/20 tires that measure mounted on a 9.5 wheel that i have is 27.02 tall by 10.03 wide and that is all around. I had 3" drop coils and the same size tire and they rubbed everywhere __________________ 1969 gmc swb 5/7ish drop, 350/th400, 20x8.5 F.20x10" R

08-14-2009, 01:23 AM	#6
vegaschevy Account Suspended Join Date: May 2009 Location: las vegas nv Posts: 1,493	Re: 4/6 drop 20" wheels tire size and actual size i can find this tire in a 245/40-20 for the front Falken Azenis ST-115 For the rear it is a 295/40-20 Falken Ziex S/TZ01 THis front tire measures 27.7" tall and is 9.6" wide on a 8.5" rim The rear tire is 29.3" tall and is 11.9" wide on a 10.5" rim What do you think? It is not easy to find tires in these sizes. I would want to run the largest possible tire from and rear while keeping overall circumference close to each other. maybe a little larger on the rear Last edited by vegaschevy; 08-14-2009 at 01:28 AM.

08-15-2009, 10:41 AM	#7
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: 4/6 drop 20" wheels tire size and actual size 4.5/6 drop on 245/35/20 front and rear Attached Images

08-15-2009, 11:16 AM	#8
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,682	Re: 4/6 drop 20" wheels tire size and actual size My 245/40-20's measure 27" tall. I think a 28.5" tire would be too tall. The key will be using a wheel with the correct backspacing to "tuck" the rim. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

08-15-2009, 11:17 AM	#9
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,682	Re: 4/6 drop 20" wheels tire size and actual size Tirerack.com has a sale on 295/40's and 245/40's right now. They are BFG's KDW tires. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

08-15-2009, 05:13 PM	#10
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	Re: 4/6 drop 20" wheels tire size and actual size 4/7 drop with 20x8 Eagle Alloys and 275/45 Falken STZ04's all around w/ zero rubbing. Hopefully going to 295's rear soon and baggin it. __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom Last edited by smoked68; 08-15-2009 at 05:16 PM.

10-09-2009, 05:29 PM	#11
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,948	Re: 4/6 drop 20" wheels tire size and actual size anyone else? __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

10-09-2009, 07:25 PM	#12
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: 4/6 drop 20" wheels tire size and actual size 255-50-18 up front 295-40-20 in the rear continentals..... 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

10-09-2009, 09:44 PM	#14
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,519	Re: 4/6 drop 20" wheels tire size and actual size 245/40/20 front and 295/40/20 rear took those wheels and tires and put them on the truck before I sold it. That was about a 4/6 drop. Last edited by jkade; 10-09-2009 at 09:45 PM.

10-10-2009, 10:20 PM	#15
Doug's68SS Registered User Join Date: May 2009 Location: Canton, Tx Posts: 175	Re: 4/6 drop 20" wheels tire size and actual size I like the 18/20 setup and I like your wheels what kind are they



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