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How big of spare tire in a suburban

Mikey von

1/2 ton status
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Burney, CA
My 315/75 r16 tire does not fit in the spare tire well in my suburban. I am wondering if anyone has fit a skinnier 34.5" tire in the spare tire holder?
 
Maybe just stick a 31 in there and have that as your emergency spare. Then just throw the 34 in the back or on the roof for wheeling trips so you'll have a nice full size spare to use in the event of a trail blowout. That's what my buddy does in his f250 on 35s. He's got the factory spare in the factory location for emergency (road) blowouts and it will get him home no problem, he's had to do it before, then he just throws his full size spare in the bed when he hits the trail.
 
Maybe just stick a 31 in there and have that as your emergency spare. Then just throw the 34 in the back or on the roof for wheeling trips so you'll have a nice full size spare to use in the event of a trail blowout. That's what my buddy does in his f250 on 35s. He's got the factory spare in the factory location for emergency (road) blowouts and it will get him home no problem, he's had to do it before, then he just throws his full size spare in the bed when he hits the trail.

I will eventually get a tire carrier on the rear bumper. Will a smaller spare be OK in emergency with open diffs? I want to go locked, but when I can afford that I will be able to afford the new bumper as well.
 
Tire swapping procedures... put spare tire on front axle. Steering will be weird, but it'll get you down the road to get the bad tire replaced.
 
Yah, smaller spare will be fine , only difference you should notice is a lopsided truck. And like 4xcrazy said, put the spare on the front axle, you want both rear tires to be the same size since they drive the truck.
 
I'd forget until I was approximately 3/4 of the way into the garage.

Another drawback to the roof mounted spare--is getting it UP there!...

I dont know about you guys,but I find hoisting an 8 lug steel rim with a large 8 or 10 ply tire on it is a quick way to throw your back out for a few weeks..they weigh well over 100 pounds...

It's a toss up as to which is harder--putting such a spare back up in the carrier under a pickup bed,or hoisting it up onto the roof...the roof is probably easier though...I never put my spare under the truck..they ride in the bed or get chained to the headache rack..in a Suburban it's not as bad getting a spare up into the cargo compartment..
 

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