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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2009 Posts: 349 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 349 | I have a stock 56 chevy truck with 215 75 15 tires, a guy has some whitewalls for sale that are 8.20 x 15's. I believe an 8.20 x 15 is the same as a 275 60 15. My question is this, will those tires fit on my stock rims? They are quite a bit wider and am worried whether they would rub. Thanks for the help. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Are those antique tires, best to check build date.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Apr 2009 Posts: 349 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 349 | I have no idea, once i know whether they will work, i will start getting the details. He lives about 2 hours from me unfortunately. I'll have to ask for some pics. | | | | | Joined: Apr 2009 Posts: 349 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 349 | I talked to the guy and he said the tires are probably 10 years old, have been inside and have 95% of their tread. I am more worrited that they'll rub, and i would also have to get different rims to fit them on. Thoughts??? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Wheel Diameter: 15 in.
Tire Size: 275/60-15
Tire Construction: Radial
Tire Diameter Range: 28-28.99 in.
Tire Diameter: 28.10 in.
Section Width: 10.70 in.
Tread Width: 8.90 in.
Minimum Recommended Wheel Width: 7.50 in.
Maximum Recommended Wheel Width: 9.50 in.
Wheel Diameter: 15 in.
Tire Size: 8.20-15
Tire Construction: Radial
Tire Diameter Range: 29-29.99 in.
Tire Diameter: 29.91 in.
Section Width: 7.62 in.
Tread Width: 5.60 in.
Minimum Recommended Wheel Width: 6.00 in. | | | | | Joined: Apr 2009 Posts: 349 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 349 | Wow, big difference! Do you think the 8.20 15's would work on stock 1/2 ton rims for a taskforce truck? | | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | Do you think the 8.20 15's would work on stock 1/2 ton rims for a taskforce truck? Absolutely not- - - -8.20-15's were standard tires for big Buicks, Cadillacs, etc. and they needed a much wider rim. That's also a bias ply designation, not a radial. The sidewall profile would be a lot higher on the 8.20, something like 78% of the tread width, instead of the 60% tread-to sidewall ratio of the 60 series radial. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | 7.00R15LT work well and look good but are close to rubbing .... I suspect 8.20 would rub the drag link at full turns .... your stock rims should be 6" Bill | | |
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