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Topic: Spare tire size

in Forum: C3 Handling Components

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Spare tire size (1/3)
12/11/09 6:54pm

Fairlane514
Former Member
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Houston, TX - USA

Vette(s):
1970 454 4 speed A/C power everything else

Joined: 2/7/2008
Posts: 93

1970..............the size tire on my spare is 225/70 and doesn't want to fit without lowering the ride height of the carrier. What is the correct size?

Thanks

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Spare tire size (2/3)
12/12/09 12:19am

Adams' Apple

Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 20128

The original size for the '70 model was F70-15. Crossing that over to the metric system will give you a tire that is a bit wider, which means the tire tub has to be adjusted down somewhat.
My '74 came with GR70-15s, and the metric equivalent is a 225-70R15. I have to drop the tub down to get a spare that size on mine, too....

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Joel Adams
C3VR Lifetime Member #56
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Spare tire size (3/3)
12/12/09 1:33pm

Fairlane514
Former Member
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Houston, TX - USA

Vette(s):
1970 454 4 speed A/C power everything else

Joined: 2/7/2008
Posts: 93

Cool........I guess I will mess with it some more then.

Thanks

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