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Spare tire size with 22" LPO wheels

bestapex

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bestapex Enthusiast

bestapex

Posted
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New to forum. Just got a new 2016 Silverado LTZ Z71. It has a Pro Comp 6" lift with 22" LPO Chevy wheels and tires, the black ones. I am trying to get a build sheet. I noticed that I have a spare tire at 17". With the added 22" wheel option, should I get a 22" spare with that? Just wondering if I didn't get the spare I should have. Thanks.

Chris Senior Enthusiast

Chris

Posted
Posted

Depends on what size you are running. I wouldnt mount a spare 22 in the stock location. Keep the 17 and run a larger tire on it if necessary. If you for some reason are on stock tires, stock spare is fine

bestapex Enthusiast

bestapex

Posted
  • Author
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Thx. Will do that. Just wondering if I was supposed to receive a 22" spare wheel from the dealer, since I purchased it new with the 22" wheels optioned on it.

LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

No the spare tires are all the same no matter what wheels you get, just a generic spare that's cheap for GM to put under there

Donstar Senior Enthusiast

Donstar

Posted
Posted

As suggested earlier, your spare would be similar in overall height to your stock wheels. Check the tire size posted just inside your driver's door. You will quickly find out if your tires are still stock height.

bestapex Enthusiast

bestapex

Posted
  • Author
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Checked my spare tire it is 265/70R17 at about 31.6" diameter. Tires I am running are 285/55R22 at 34.3" diameter. Should I be concerned with the 2.7" difference if I need the spare very long? Thx.

Chris Senior Enthusiast

Chris

Posted
Posted

Checked my spare tire it is 265/70R17 at about 31.6" diameter. Tires I am running are 285/55R22 at 34.3" diameter. Should I be concerned with the 2.7" difference if I need the spare very long? Thx.

Yes. Might try to find a 285/75R17 for the spare
TJay74 Senior Enthusiast

TJay74

Posted
Posted

All of the "factory" wheels sizes GM uses all use the same or really close to the same over tire height in tire size. This allows them to put one calibration number into the ECM for the speedo. If you change out the spare to the size recommended it will get you close. Your speedo will still be off though unless you have someone either do a custom calibration or buy the hypertech tire size calibrator.

Donstar Senior Enthusiast

Donstar

Posted
Posted

Trying to mount a larger wheel under your truck may be an issue. If so, I would leave the spare wheel that came with the vehicle. It should be fine in an emergency for a slow speed, short trip for a flat repair.

redwngr Senior Enthusiast

redwngr

Posted
Posted

The 50 miles and 50mph 'donut' spares that the automakers supply with many (most) vehicles today are much smaller than the regular wheels/tires.

 

The smaller spare will be fine for the intended use.

qwank Senior Enthusiast

qwank

Posted
Posted

Factory 22s should be 285/45R22 , they put oversized tires on and left you with a useless spare. I would make then pay for the new tire

Donstar Senior Enthusiast

Donstar

Posted
Posted

Factory 22s should be 285/45R22 , they put oversized tires on and left you with a useless spare. I would make then pay for the new tire

I would definitely check for space before considering a larger spare. I don't know what the limitations are as I haven't needed to remove a spare in my past few trucks. However, I have read where larger wheels may have fitment issues.

qwank Senior Enthusiast

qwank

Posted
Posted

I would definitely check for space before considering a larger spare. I don't know what the limitations are as I haven't needed to remove a spare in my past few trucks. However, I have read where larger wheels may have fitment issues.

That's true, I didn't even think that there probably isn't any room for any tire larger that 31" under there

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