Need Help! Anyone here running 20's on their 47-59? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chuckuss · 04-24-2015, 01:32 PM

I got some 20x9 wheels for my 52. I was wondering if anyone else was running these and what tire sizes you found to work best? I am running a ford 9 inch rear and a Mustang II front.

Thanks!

ghettoluxury · 04-24-2015, 02:53 PM

The widest you can go without tubbing the bed is a 255/45/20. I recommend a 245/45/20 or a 245/35/20 so you don't have to worry about rubbing on turns or with a load in the bed. I have 255/45/20 for my '49 and it is a very tight fit.

Chuckuss · 04-24-2015, 03:29 PM

Do you know what offset you are running? I was really hoping to run at least a 275

**youngrodder** · 04-24-2015, 04:02 PM

I'm running 20 x 10 with a 275 x 45 x 20 tire. I have 2 3/4" mini tubs though. I wanted to go with 295 but there was no way that it would have fit.

My backspacing is 4" (providing a 6" lip). I'm using a reared out of a Grand National.

Marc

Chuckuss · 04-24-2015, 04:12 PM

uh oh... now I am worried I might not fit...

dubds10 · 04-24-2015, 09:02 PM

255 is the widest, after that it rubs. If you want bigger you need tubs or widened fenders.

mr48chev · 04-25-2015, 04:17 PM

There isn't room for wider than a 255 tire no matter what the rim diameter is. I ran 255-60-15 tires on my 48 for years with about a half inch clearance inside and out. Anything wider would require tubs.

Follow what Youngrodder has to say as he is one of the few that makes those big rims look proper on these trucks.

MIKEs50Chevy · 05-14-2015, 09:30 PM

I'm running 275/40ZR20 in the back on my '50. It had an updated rear end when I bought the truck, I was told it is out of a Chevelle. Once the rear end died, I had it rebuilt with 3:42 gears and Posi. I'm getting a little rubbing with the 245/45ZR18 in the front, we had to cut out the inner wheel well a little before and I may have to do that some more as when I'm turning full tilt I get a little rubbing, I'm sure we can fix it.

04-24-2015, 01:32 PM	#1
Chuckuss Registered User Join Date: Jul 2014 Location: Chandler Posts: 58	Need Help! Anyone here running 20's on their 47-59? I got some 20x9 wheels for my 52. I was wondering if anyone else was running these and what tire sizes you found to work best? I am running a ford 9 inch rear and a Mustang II front. Thanks!

04-24-2015, 02:53 PM	#2
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	Re: Need Help! Anyone here running 20's on their 47-59? The widest you can go without tubbing the bed is a 255/45/20. I recommend a 245/45/20 or a 245/35/20 so you don't have to worry about rubbing on turns or with a load in the bed. I have 255/45/20 for my '49 and it is a very tight fit. __________________ 1949 Five Window, 1973 Step Side, 2000 Z71

04-24-2015, 03:29 PM	#3
Chuckuss Registered User Join Date: Jul 2014 Location: Chandler Posts: 58	Re: Need Help! Anyone here running 20's on their 47-59? Do you know what offset you are running? I was really hoping to run at least a 275

04-24-2015, 04:02 PM	#4
youngrodder Registered User Join Date: Mar 2007 Location: Scotts, Michigan Posts: 3,766	Re: Need Help! Anyone here running 20's on their 47-59? I'm running 20 x 10 with a 275 x 45 x 20 tire. I have 2 3/4" mini tubs though. I wanted to go with 295 but there was no way that it would have fit. My backspacing is 4" (providing a 6" lip). I'm using a reared out of a Grand National. Marc Attached Images __________________ …………...........__________ .................. ((__\|__\|\|___\____ ..;.;;.:;:;.,;..;((_(O))____ (_(O)) 1948 Chevy Truck - Finished SOLD!! 1953 Chevy Suburban "Family Truckster" Completed: Spring of 2021 http://67-72chevytrucks.com/vboard/s...d.php?t=605484 1994 4x4 Blazer - "Field Find" https://67-72chevytrucks.com/vboard/...ferrerid=30857

04-24-2015, 04:12 PM	#5
Chuckuss Registered User Join Date: Jul 2014 Location: Chandler Posts: 58	Re: Need Help! Anyone here running 20's on their 47-59? uh oh... now I am worried I might not fit...

04-24-2015, 09:02 PM	#6
dubds10 Stalker Nate Join Date: Dec 2010 Location: Langley, BC, Canada Posts: 1,556	Re: Need Help! Anyone here running 20's on their 47-59? 255 is the widest, after that it rubs. If you want bigger you need tubs or widened fenders. __________________ 1957 GMC SWB stepper modified summer time driver 1963 Chevy Fire Dept. Command Center Van 2 ton - future food vending truck project 1965 Chevy P10 Ice Cream Truck project Instagram - TheDonutDiner FaceBook - @UscreamIscream

04-25-2015, 04:17 PM	#7
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,426	Re: Need Help! Anyone here running 20's on their 47-59? There isn't room for wider than a 255 tire no matter what the rim diameter is. I ran 255-60-15 tires on my 48 for years with about a half inch clearance inside and out. Anything wider would require tubs. Follow what Youngrodder has to say as he is one of the few that makes those big rims look proper on these trucks. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

05-14-2015, 09:30 PM	#8
MIKEs50Chevy Registered User Join Date: Feb 2013 Location: Lynnwood, WA Posts: 77	Re: Need Help! Anyone here running 20's on their 47-59? I'm running 275/40ZR20 in the back on my '50. It had an updated rear end when I bought the truck, I was told it is out of a Chevelle. Once the rear end died, I had it rebuilt with 3:42 gears and Posi. I'm getting a little rubbing with the 245/45ZR18 in the front, we had to cut out the inner wheel well a little before and I may have to do that some more as when I'm turning full tilt I get a little rubbing, I'm sure we can fix it.



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