Is a spare tire 1/2 smaller diameter okay? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**NC67Chev** · 05-24-2014, 10:08 AM

I've used a spare probably 3 times in my life, 2 of which were a result of my wife jumping a curb

Anyway, is there an issue with using a spare that is 1/2 inch or so shorter?

I could use the same size as is on the truck, but it would be nice to have it a little more narrow since I'm gonna keep it under the bed. Thanks!

luvbowties · 05-24-2014, 10:10 AM

Quote:

Originally Posted by NC67Chev

I've used a spare probably 3 times in my life, 2 of which were a result of my wife jumping a curb

Anyway, is there an issue with using a spare that is 1/2 inch or so shorter?

I could use the same size as is on the truck, but it would be nice to have it a little more narrow since I'm gonna keep it under the bed. Thanks!

You oughta be plenty ok. Narrower would be fine also--remember how much narrower the space-savers are?
Sam

dsy1 · 05-24-2014, 11:43 AM

Just be sure to use it in the front only if you have a posi or a locker in the rear.

swamp rat · 05-24-2014, 12:25 PM

As stated above, don't use if you have a posi or locker, with a regular diff your ok for short hop until you get the other tire fixed.

**NC67Chev** · 05-24-2014, 04:14 PM

Thanks guys! I figured it would be ok, but I wanted to check and make sure. I'd keep the 15" spare under there, but it won't clear discs and it's approx 2 1/2" smaller in diameter than the new 16's.

BugzC10 · 05-25-2014, 07:57 AM

Quote:

Originally Posted by NC67Chev

Thanks guys! I figured it would be ok, but I wanted to check and make sure. I'd keep the 15" spare under there, but it won't clear discs and it's approx 2 1/2" smaller in diameter than the new 16's.

I'm looking for a 5x5 donut spare to carry. So you're saying that the 15" donut spare won't clear the disc? Only a 16"? Please clarify
Thanks

**NC67Chev** · 05-25-2014, 09:24 AM

Quote:

Originally Posted by BugzC10

I'm looking for a 5x5 donut spare to carry. So you're saying that the 15" donut spare won't clear the disc? Only a 16"? Please clarify
Thanks

I'm talking about the original 6 lug 15" drum only wheels that were used up to '70.

05-24-2014, 10:08 AM	#1
NC67Chev Senior Member Join Date: Oct 2009 Location: Greensboro, NC Posts: 698	Is a spare tire 1/2 smaller diameter okay? I've used a spare probably 3 times in my life, 2 of which were a result of my wife jumping a curb Anyway, is there an issue with using a spare that is 1/2 inch or so shorter? I could use the same size as is on the truck, but it would be nice to have it a little more narrow since I'm gonna keep it under the bed. Thanks! __________________ 1967 Chevy C-10, 250 L6, Powerglide, 3.73, SWB, Fleetside Upgrades: Power steering, Offset air cleaner, Rear Sport bumper, 3 point safety belts, HEI, -1/-2 springs, 16x5 wheels, McGaughy's disc brake conversion, Sway bar

05-24-2014, 11:43 AM	#3
dsy1 Registered User Join Date: Aug 2010 Location: San Diego, CA Posts: 128	Re: Is a spare tire 1/2 smaller diameter okay? Just be sure to use it in the front only if you have a posi or a locker in the rear.

05-24-2014, 12:25 PM	#4
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: Is a spare tire 1/2 smaller diameter okay? As stated above, don't use if you have a posi or locker, with a regular diff your ok for short hop until you get the other tire fixed. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

05-24-2014, 04:14 PM	#5
NC67Chev Senior Member Join Date: Oct 2009 Location: Greensboro, NC Posts: 698	Re: Is a spare tire 1/2 smaller diameter okay? Thanks guys! I figured it would be ok, but I wanted to check and make sure. I'd keep the 15" spare under there, but it won't clear discs and it's approx 2 1/2" smaller in diameter than the new 16's. __________________ 1967 Chevy C-10, 250 L6, Powerglide, 3.73, SWB, Fleetside Upgrades: Power steering, Offset air cleaner, Rear Sport bumper, 3 point safety belts, HEI, -1/-2 springs, 16x5 wheels, McGaughy's disc brake conversion, Sway bar



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