Spare Tire Size

[gary2232]

I have a 72 K-10 with 32x11.5x15" tires. If I use a 31x10.5x15 tire as a spare will it cause and damage to drive train??

[Stocker]

As a spare, no problem.... but it could be an issue if you bolt it on & run it...


Sorry, I couldn't resist. There's about a 3.2% difference in diameter (or circumference), and I wouldn't use it on the rear axle, especially if you have any kind of limited-slip back there. It might be okay on the front (but only in 2WD, and assuming you don't have a full-time system) for a short time, but that's about it.

[gary2232]

Originally Posted by Stocker

As a spare, no problem.... but it could be an issue if you bolt it on & run it...


Sorry, I couldn't resist. There's about a 3.2% difference in diameter (or circumference), and I wouldn't use it on the rear axle, especially if you have any kind of limited-slip back there. It might be okay on the front (but only in 2WD, and assuming you don't have a full-time system) for a short time, but that's about it.

Ok thanks for the response. I sure hate putting that big a tire up in that rack under the bed. It is hard to get up there and lowers the ground clearance. But if I must. Thanks P.S. I like the sarcasm it keeps it fun!!

[raycow]

Ya know, the spare only has to match for diameter, not width. Why not use a skinny 32" tire? Maybe something on a larger diameter (but narrow) wheel. It will weigh less and give you more ground clearance.

Ray