Hello all! I've recently acquired a 1975 Dodge Executive and thus the beginning of my adventure in RVing! The RV is need of some cosmetic work but the engineering is pristine. I'm very excited.My question is about tires, though. It has 8R19.5 size tires on it and have plenty of thread on them. With exception that on the sidewalls, there is some cracking due to the extreme Las Vegas heat. The tires hold air fine and as I mentioned, practically no tread wear. The previous owner just had it parked and let the sun get to the sides.I'm trying to avoid investing in a new set of 6 tires. Especially with this oddball side. I've considered using some sealant and/or that Flexseal stuff. I've read good reviews of it and thought it might be a good fix for otherwise good tires.Any suggestions for this newbie on sidewall tire repair or just tires in general?Your help is greatly appreciated!

I sure hope you are joking. Your life depends on those tires and I would not drive across town on them. RV tires rarely ware out the tread, but just rot as yours have done. Replace them.

If the side walls are cracked there is nothing you can do except replace them. There is nothing you can buy/do to prevent them from blowing out and you sure don't want a blow out at highway speeds. Be safe for yourself and the other people on the road and replace them.

Welcome to the forum. If you are going to drive the MH, you will need new tires. RV tires age out before they wear out.A blow out can cause a lot of damage.I would start looking for the best deal on your size tires.Post some pics of your Executive when you have time.

No way to repair sidewalls. If you plan on driving it anywhere, a set of tires will be a lot cheaper than what could happen. I would even be really cautious about driving even a short distance to a tire store. You will be lucky if it rolls at all.

Sidewall Tire Repair | Good Sam Community

Vulcan_Rider
Explorer
Aug 22, 2015
EMD360 wrote:
We have never used the spare, thank goodness, so we updated the old one with a tire that we replaced new.

Not sure what you are trying to say there but it is a good idea to change the spare at the same time you change the others......because you never know when you might have to put it on at the beginning of a 3 day holiday weekend and use it for a LOT more miles than you planned.

ALSO....I found that tires mounted under the body and never touched for a long time can be problematic. The tire shop couldn't get mine down; I had to take it to a full service RV shop to have the mounting bolt cut off and replaced with a new one.
EMD360
Explorer
Aug 22, 2015
We just used a spare under our Ford 250 while repairing one of the tires, and the undermount was a bear. Our RV spare is mounted on the back, but still was difficult to remove after sitting there immobile for 10 years or so.
I think an older spare is just not that big of a risk, but then again I take risks other would not. You never know when you will need a lot of things, but we have roadside service and probably would replace our tire before we used the spare very long. It is truly just an emergency measure. YRMV as they say.
Then again what is another $250 when you are out spending money right?
snowdance
Explorer
Aug 23, 2015
For the spare. Most tire shops have a good used tire removed by an RVer because its 5 or so years old. They make a nice 1st spare. After that when you change tires every 5 or so years just put the best one on the spare. Then you have a newer spare and you have removed it every few years so it does not rust into place.

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Sidewall Tire Repair

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