Biggest 20" tires you are running? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

epashhans · 09-04-2009, 03:20 PM

I hate the little "rubber band" tires on 20" wheels...just curious what the biggest you can run or you guys are running, both front and back. This is for a 67 swb 2wd with a 3/5 drop. Any pics? I really appreciate it...

c10addict · 09-04-2009, 04:57 PM

Im running a 255/50/20 on the rear of my 68... Pretty nice size sidewall

big_al_71 · 09-04-2009, 05:12 PM

295-40-20 on a 20x10 6 inch rear drop

Ackattack · 09-04-2009, 06:48 PM

315/35/20

A little thin, but I wanted wide

Chevyman680063 · 09-04-2009, 06:51 PM

Addict and big_al, you both have beautiful trucks.

Hottrucks · 09-04-2009, 08:33 PM

Quote:

Originally Posted by Ackattack

315/35/20

A little thin, but I wanted wide

any chance you could get a pic of inside the hood area I want to see how it clears the ball joints and tie rod end??? I was looking at my rallies and I can't go in very much with offset beacuse of those things??? SO I'm just woundering what size rime I need to clear that stuff.....I have been keeping an eye on a deal on Craigslist and such so I need to know before I buy or try

also did you guys have to restud your drums to get your wheels on??

thanx

big_al_71 · 09-04-2009, 09:22 PM

Quote:

Originally Posted by Chevyman680063

Addict and big_al, you both have beautiful trucks.

Thank you!!!!!!!

nuke1 · 09-05-2009, 03:02 AM

front has 255/40/20 and rear is 295/45/20 one 9.5's wide rim

c10addict · 09-05-2009, 12:45 PM

Quote:

Originally Posted by Chevyman680063

Addict and big_al, you both have beautiful trucks.

Thanks Alot!!

c10crazy · 09-05-2009, 01:38 PM

Nice rims!

Not to hijack- but could you guys also post a rear shot to show how wide those sizes are?.

big_al_71 · 09-05-2009, 02:54 PM

Gere are some picts that kind of show how wide the tire is..these are the only ones I have in this computer..

Hottrucks · 09-05-2009, 03:37 PM

285/50R20 will they fit I found a deal on craigslist hoping to score tomorrow....

*Puropedo* · 09-05-2009, 03:42 PM

285/45/20s front 305/50/20s rears, same wheels/tires, different trucks.. (dont like rubber bands either

)

Hottrucks · 09-05-2009, 03:46 PM

PUROPEDO....Any problems on your 70 with them??? upfront I have my truck bagged/notched and cupped...and just was woundering how the clearnce was??

*Puropedo* · 09-05-2009, 06:34 PM

My front rim/tire set up on my 78 gmc and 72 cheyenne would not work for a bag suspension up front, (tires are too wide ) I have a static 4 inch drop and sometimes the tires rub on the wheel wells ( on my 78 gmc I had to take the fender wells off and cut the lips on the inside of the fenders it has a 5.5 front drop). For you my friend I would personally recomend 20x8.5 wheels with 5.5-6.5 backspacing and 245/45/20 tires up front, rear you can go as wide as 315 depending on your rear wheel backspacing. Here are a few pics of my 68 with 22s not bagged but will be in the future, I got such fat tall tires on the back that they are almost rubbing the front wheel opening (will fix that problem moving the trailing arm crossmember back about an inch.

Hottrucks · 09-05-2009, 07:15 PM

well I missed the deal which is what I figured but at least the guy was nice enough to cal me back....

If you bag it the best you can hope for is a tire 29 1/2" tall with no wheel wells after that your into the inner fender support ...my 235/75/15's (29 1/2"s) will just clear my support by about [ ] that much also you start to run into heater box issues then hood hindges ( my LCA are cupped 2 3/4" it was easy and cheap I also used a stock monroe 5258 ( I think I can get # if you need it) shock it drives very well but I think I may mod the upper by putting a cut in it and flattening the ball joint...how ever it doesn't bind and no scrubline issues)

on the rear I have 31/10.5/15 with a 2 1/2" C notch and they rub at the top of the wheel well right where the tub meets the inner bed panel

these are on stock rallies

a smaller tire and I would drag the collectors off (they're alittle ummmmm worn now) so an exhaust mod woud have to be done ( inside the frame rail with dif headers) nice thing is I can drive it on the Bump stops if I had to??? like at the ice cream place

OldSkool71 · 09-05-2009, 08:10 PM

Puropedo

what is the drop on your yellow truck? also what size and BS on the wheels and tires? I wanna go 4/6 ECE with AR TTII's need to know what is the tallest/widest tire I can run and what BS I need to avoid any issues.

Thanks, Ron

chevyguy_72 · 09-05-2009, 09:54 PM

285/50/20s all the way around on mine. No drop yet. I personally want to go lower profile but these were cheap so i got them

72BlckButy · 09-05-2009, 11:04 PM

Quote:

Originally Posted by Puropedo

Here are a few pics of my 68...

Ahem.... '68, I don't recall you ever mentioning a '68 my friend.

**Hart_Rod** · 09-05-2009, 11:21 PM

Quote:

Originally Posted by 72BlckButy

Ahem.... '68, I don't recall you ever mentioning a '68 my friend.

What he said....how about more pictures....

epashhans · 09-06-2009, 12:37 AM

Quote:

Originally Posted by chevyguy_72

285/50/20s all the way around on mine. No drop yet. I personally want to go lower profile but these were cheap so i got them

Hey chevyguy_72, can you post some pics of those tires/wheels on your truck? Thanks!

chevyguy_72 · 09-06-2009, 12:41 AM

Quote:

Originally Posted by epashhans

Hey chevyguy_72, can you post some pics of those tires/wheels on your truck? Thanks!

I will have to take a new one tomorrow. They are the ones in my avatar but i can not find the original pic only the shrunk down one...

*Puropedo* · 09-06-2009, 04:43 AM

Quote:

Originally Posted by OldSkool71

Puropedo

what is the drop on your yellow truck? also what size and BS on the wheels and tires? I wanna go 4/6 ECE with AR TTII's need to know what is the tallest/widest tire I can run and what BS I need to avoid any issues.

Thanks, Ron

Ron, Youre on the right track, my cheyenne sports a 4-6 drop from ECE, wheels are AR TTII's fronts are 20x8.5s with a 4.5 backspace ( I recommend at least 5.5, I mest up on the measurements when I order my front ones but now I know, I will add an extra inch of bs later on to the front ones) rears are 20x10's with 5.5 backspace this worked out ok. Front tires are 285/45s and rears are 305/50s. I like that hot rod look

Also, I think those tire sizes will be the max tall,wide you may use unless you do some mods to your truck.

Quote:

Originally Posted by 72BlckButy

Ahem.... '68, I don't recall you ever mentioning a '68 my friend.

Nate, my 68 was to be a surprise, besides I dont wanna seem like a show off ( having too many nice old trucks)

Quote:

Originally Posted by Hart_Rod

What he said....how about more pictures....

Funny how two TOTM winners ask for more pics of my 68.... Do you guys think I deserve that same badge on my avatar? I dont really mean to hijack Epanshhas thread but if you insist here is a teaser...

72BlckButy · 09-06-2009, 08:47 PM

Nice teaser pic...

Can't wait to see what else you have in store for it. Now... what's that parked behind the '69?

OldSkool71 · 09-06-2009, 08:48 PM

[QUOTE=Puropedo;3504213]Ron, Youre on the right track, my cheyenne sports a 4-6 drop from ECE, wheels are AR TTII's fronts are 20x8.5s with a 4.5 backspace ( I recommend at least 5.5, I mest up on the measurements when I order my front ones but now I know, I will add an extra inch of bs later on to the front ones) rears are 20x10's with 5.5 backspace this worked out ok. Front tires are 285/45s and rears are 305/50s. I like that hot rod look

Also, I think those tire sizes will be the max tall,wide you may use unless you do some mods to your truck.

Can you post some more pics of your Cheyenne? Or pm me and you can email them to me directly. Specifically around the wheels to get and idea of how they look setting in or out. Inside from underneath would be great to front and rear. When you get an opportunity of course sir..dont mean to hijack this thread but hopefully this will help others with the same questions as well. And im with you on the Hot Rod look as well. Thanks in advance.

09-04-2009, 03:20 PM	#1
epashhans Registered User Join Date: Jul 2009 Location: MT Posts: 319	Biggest 20" tires you are running? I hate the little "rubber band" tires on 20" wheels...just curious what the biggest you can run or you guys are running, both front and back. This is for a 67 swb 2wd with a 3/5 drop. Any pics? I really appreciate it... __________________ '67 C-10 Shorty - 454, 5spd, and speed holes!

09-04-2009, 04:57 PM	#2
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: Biggest 20" tires you are running? Im running a 255/50/20 on the rear of my 68... Pretty nice size sidewall Attached Images __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

09-04-2009, 05:12 PM	#3
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: Biggest 20" tires you are running? 295-40-20 on a 20x10 6 inch rear 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

09-04-2009, 06:48 PM	#4
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,524	Re: Biggest 20" tires you are running? 315/35/20 A little thin, but I wanted wide __________________ 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

09-04-2009, 06:51 PM	#5
Chevyman680063 Registered User Join Date: Aug 2006 Location: Georgia Posts: 850	Re: Biggest 20" tires you are running? Addict and big_al, you both have beautiful trucks.

09-05-2009, 03:02 AM	#8
nuke1 Registered User Join Date: Jun 2007 Location: Saskatoon, Saskatchewan,: Posts: 2,901	Re: Biggest 20" tires you are running? front has 255/40/20 and rear is 295/45/20 one 9.5's wide rim Attached Images __________________ James 1968 GMC "HAVOC" 1986 GMC "Frank" J.J.R.H. Design & Consulting My 68`Rebuild "HAVOC": http://67-72chevytrucks.com/vboard/s...d.php?t=316300 A 58' chev build thread: http://www.67-72chevytrucks.com/vboa...d.php?t=311238 1969 Camaro Pro Touring http://67-72chevytrucks.com/vboard/s...61#post3513361 Swiss Cheese: http://67-72chevytrucks.com/vboard/s...d.php?t=384390 Adjustable Trailing Arm How-To: http://67-72chevytrucks.com/vboard/s...d.php?t=321100 1968 Ford Farm Truck: http://67-72chevytrucks.com/vboard/s...=1#post6555587

09-05-2009, 01:38 PM	#10
c10crazy Like a Rock! Join Date: May 2002 Location: USA Posts: 1,092	Re: Biggest 20" tires you are running? Nice rims! Not to hijack- but could you guys also post a rear shot to show how wide those sizes are?. __________________ 69 LWB Runs great - work in progress Mess with me and you mess with the whole trailer park!

09-05-2009, 02:54 PM	#11
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: Biggest 20" tires you are running? Gere are some picts that kind of show how wide the tire is..these are the only ones I have in this computer.. 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; 09-05-2009 at 02:55 PM.

09-05-2009, 03:37 PM	#12
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Biggest 20" tires you are running? 285/50R20 will they fit I found a deal on craigslist hoping to score tomorrow.... __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html

09-05-2009, 03:42 PM	#13
Puropedo Account Suspended Join Date: Nov 2008 Location: Prunedale California Posts: 782	Re: Biggest 20" tires you are running? 285/45/20s front 305/50/20s rears, same wheels/tires, different trucks.. (dont like rubber bands either ) Last edited by Puropedo; 10-13-2009 at 02:40 PM.

09-05-2009, 03:46 PM	#14
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Biggest 20" tires you are running? PUROPEDO....Any problems on your 70 with them??? upfront I have my truck bagged/notched and cupped...and just was woundering how the clearnce was??

09-05-2009, 06:34 PM	#15
Puropedo Account Suspended Join Date: Nov 2008 Location: Prunedale California Posts: 782	Re: Biggest 20" tires you are running? My front rim/tire set up on my 78 gmc and 72 cheyenne would not work for a bag suspension up front, (tires are too wide ) I have a static 4 inch drop and sometimes the tires rub on the wheel wells ( on my 78 gmc I had to take the fender wells off and cut the lips on the inside of the fenders it has a 5.5 front drop). For you my friend I would personally recomend 20x8.5 wheels with 5.5-6.5 backspacing and 245/45/20 tires up front, rear you can go as wide as 315 depending on your rear wheel backspacing. Here are a few pics of my 68 with 22s not bagged but will be in the future, I got such fat tall tires on the back that they are almost rubbing the front wheel opening (will fix that problem moving the trailing arm crossmember back about an inch. Last edited by Puropedo; 10-13-2009 at 02:40 PM.

09-05-2009, 07:15 PM	#16
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Biggest 20" tires you are running? well I missed the deal which is what I figured but at least the guy was nice enough to cal me back.... If you bag it the best you can hope for is a tire 29 1/2" tall with no wheel wells after that your into the inner fender support ...my 235/75/15's (29 1/2"s) will just clear my support by about [ ] that much also you start to run into heater box issues then hood hindges ( my LCA are cupped 2 3/4" it was easy and cheap I also used a stock monroe 5258 ( I think I can get # if you need it) shock it drives very well but I think I may mod the upper by putting a cut in it and flattening the ball joint...how ever it doesn't bind and no scrubline issues) on the rear I have 31/10.5/15 with a 2 1/2" C notch and they rub at the top of the wheel well right where the tub meets the inner bed panel these are on stock rallies a smaller tire and I would drag the collectors off (they're alittle ummmmm worn now) so an exhaust mod woud have to be done ( inside the frame rail with dif headers) nice thing is I can drive it on the Bump stops if I had to??? like at the ice cream place

09-05-2009, 08:10 PM	#17
OldSkool71 C/10 CLUB MEMBER Join Date: Jul 2003 Location: Lakewood, CA Posts: 993	Re: Biggest 20" tires you are running? Puropedo what is the drop on your yellow truck? also what size and BS on the wheels and tires? I wanna go 4/6 ECE with AR TTII's need to know what is the tallest/widest tire I can run and what BS I need to avoid any issues. Thanks, Ron __________________ -Ron-

09-05-2009, 09:54 PM	#18
chevyguy_72 Vintage Evil Join Date: Aug 2005 Location: Hastings, Nebraska Posts: 956	Re: Biggest 20" tires you are running? 285/50/20s all the way around on mine. No drop yet. I personally want to go lower profile but these were cheap so i got them



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09-06-2009, 08:47 PM	#24
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Biggest 20" tires you are running? Nice teaser pic... Can't wait to see what else you have in store for it. Now... what's that parked behind the '69? __________________ -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)

09-06-2009, 08:48 PM	#25
OldSkool71 C/10 CLUB MEMBER Join Date: Jul 2003 Location: Lakewood, CA Posts: 993	Re: Biggest 20" tires you are running? [QUOTE=Puropedo;3504213]Ron, Youre on the right track, my cheyenne sports a 4-6 drop from ECE, wheels are AR TTII's fronts are 20x8.5s with a 4.5 backspace ( I recommend at least 5.5, I mest up on the measurements when I order my front ones but now I know, I will add an extra inch of bs later on to the front ones) rears are 20x10's with 5.5 backspace this worked out ok. Front tires are 285/45s and rears are 305/50s. I like that hot rod look Also, I think those tire sizes will be the max tall,wide you may use unless you do some mods to your truck. Can you post some more pics of your Cheyenne? Or pm me and you can email them to me directly. Specifically around the wheels to get and idea of how they look setting in or out. Inside from underneath would be great to front and rear. When you get an opportunity of course sir..dont mean to hijack this thread but hopefully this will help others with the same questions as well. And im with you on the Hot Rod look as well. Thanks in advance. __________________ -Ron-

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