I'll be getting a 4" lift with larger tires...34.5-35s. What happens if I get a flat and have to put the OEM spare?

2WD?

4WD?

 

Well for one it's gonna look crazy going down the road but it will go.
Don't engage the locker or the 4wd. The locker will lock the rear and the 4wd engages the front which is locked. If you do this with different size tires it will bind up cause the tires will be turning at different speeds and probably tear something up.

 

You could do what I did and get an extra tire of the same type as your main four, but a size that will be the same overall diameter.

I run 285/60-20- Duratracs on 20 inch rims. I wanted the spare to be the same diameter so that if I got a flat while towing I could change it out and the truck wouldn't be asymmetric on one corner causing a dangerous situation. I used the stock spare tire rim, but got a Duratrac in a size that equaled the same overall diameter. I know it costs more to do that, but it's the best and safest way to go about it.

 

You limp to the nearest tire store and get it fixed or replaced. Take your time and you'll be fine.
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This is a concern of mine when I decide to get a lift and bigger tires. Just because of the cost of how I would want to do it. I would want the exact same spare tire and wheel as what I bought but I would mount it in the bed of the truck. When I went to get my tires rotated I would have the shop rotate the spare on to the truck and put a tire from the track back as a spare. I think this way would be the only way I could justify spending the extra money on a 5th tire and wheel.

And if I had a flat I would have the exact one to put on and by rotating the spare into the mix it would not just sit there and rot by not ever using it.

Just my 2 cent on this, I am sure this is not what a lot of people would do

 

My plan if i get a flat is to try to plug it myself with a cheap plug that i keep in my truck, then inflate it with a compressor i keep in my truck and see if it still leaking, then use a can of fix-a-flat for large tires if necessary and fill again. Basically spare tire would be my last choice and probably will not be necessary to use, depending on the type of flat you get. For a sidewall flat I suppose spare tire or tow would be necessary.

 

I would have a spare of equal overall diameter handy, putting the stock spare on is just asking for trouble, it might work okay on the front with 4wd disengaged but will be impossible to handle above 10 mph and putting a smaller tire on the rear is gonna tear out the rear end, especially if it's a limited slip, either have a spare of the same size, fix it, or tow it

 

Call rollback tow truck.

 

I would deflate the tall tire some to make it more closely match the height of the spare so that you don't heat the spider gears up too much in the diff. Then limp to the nearest place for a repair. Don't drive on it for long and don't drive on it at high speeds. Differentials cost more than tires.

 

This is why I love this forum. So many different opinions and ideas about how to deal with stuff that you just would not even think about

This is by far the most helpful forum I have been on. It does not go strait to bashing or hating on someone !

Sorry of topic but thanks