do i have to replace all four tires? had a flat...

[Bob Barker]

I'd say with only 40% tread left then you wouldn't want 1 or even 2 new tires. There is going to be a large difference in outer diameter. Unless you can buy 2 new tires that are the same diameter as 2 of the worn tires you have now. That might work.

[tom4bren]

I'm not a big fan of buying used tires but in this case, it may be your best bet (if you're not ready to buy 4 new tires). You should be able to find one locally that is the same size/brand/wear as what you already have on your rig.

[toast018]

I'm not a big fan of buying used tires but in this case, it may be your best bet (if you're not ready to buy 4 new tires). You should be able to find one locally that is the same size/brand/wear as what you already have on your rig.

I live in a county of fewer than 12,000 people... lol... The tire shops I have called dont even have a used 18" tire...

Part of living the the country... lol...