Here you go - #1 of the Ten . . . . Don't over inflate your tires!
You've got a VERY hard volleyball!!!
Harbor Freight does not have open stock sockets and wrenches. I broke a socket once. I let one of my friends put it on an impact gun, and it shattered. Of course, I didn't tell the store manager about the impact gun. "What do you mean how? It broke. I turned the handle, the socket broke. Isn't the corporate policy 'no questions asked'?" Store manager replaced the broken socket by giving me the $5 socket set that they sell. Okay with me, since I actually like that little $5 set. And somehow after selling those for about $5, for the last 20 years; the price has dropped to $4.
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40 Pc 3/8 in. Drive SAE & Metric Socket Set
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A high quality, low price socket set that fits under your car seat
Compare to $19.97, Kobalt 89809
It says 51 on the sidewall of the tire. A lot of people warn against airing up the tires to maximum PSI. I've always air to maximum for on-road, decrease as needed off-road. Most people will tell you that the OEM knows what they are doing with the door jam sticker. That is suppose to be the best PSI for ride comfort, handling, and braking. But Ford was wrong about that with the Explorer. I had one of those Explorers. The sticker said 26 PSI - which is about the same amount of air as I put into a volleyball. Despite all the controversy, I never had a rollover or blowout.
Ok. I finally got to talk to someone at my local store that new something other than what is on the shelf that they can see. These are only sold by HF in the kits. I asked how they planned to replace one under the lifetime warranty when I break mine and was told we would have to cross that bridge then. But as for now they have no way to replace this item even though it has their lifetime warranty on it.
51 psi seems pretty high compared to the recommended 44 front / 48 rear. You would think higher pressure would make the ride harsher with increased road noise.
I check the tire pressure monthly and the spare twice a year. The OEM tires hold pressure very well for my usage, but that's low mileage.