I will not change a flat on an interstate unless I could pull off the right shoulder ,preferable behind a guard rail...or I'd just limp to the next exit on the rim if I had to, if it wasn't that far ,and wont care if it ruins the tire & rim,its better than getting hit and killed changing a flat in the breakdown lane,which most people now use as a passing lane!..
When I've had a flat on a "town road",I pull over and go to the nearest house,and ask permission to park in their driveway while I change the flat out,its better than getting run over..however,not everyone is willing to let a stranger do that..
I prefer metal valve stems on my truck tires too--rubber ones can get ripped off too easy ,I have had one get broken while plowing before,the cold and snow snapped it off!..
I'll use the rubber ones on a car or my van,but I keep an eye on them,as many are not good quality and fail rapidly..some things made in China aren't that bad,but rubber seems to be something they cant make well--tires,valve stems,and fuel line hoses made there are often very poor quality..
I'm getting to the point changing a flat on my 3/4 ton 8 lug truck is physically challenging enough to put me at risk--the spare tire & rim weigh well over 100 lbs..and the lug nuts come off "stiff" every last thread,by the time you get the tire out of the bed (I never put a spare under the truck,ever!),and get it jacked up with the factory jack and get all the lug nuts off with a 4 way tire iron,I'm ready for the ECU..
I keep my spare in the bed of the truck,with a chain and padlock to keep it from being swiped..I use only fairly bald or weather cracked tires for spares so thieves wont feel its worth stealing too,but if I was going long distances I'd put a better spare in the bed..
I have at least 2 full sets of rims with useable tires for my truck & van..
If I need to haul something in the bed and the tire is in the way,I can chain it to the headache rack ,put it on top of the tool box--or let it hang over the side,my bed is an 8 foot stepside and the tire will fit between the rear fender and cab..been considering making a mount there for it on the passenger side like old GM trucks had it..
I have an old craftsman 3 ton floor jack I leave in the bed under the tool box--its an ingot to lift and carry,but its much easier to pump that up than use the factory crank handle type jack,which often decides to let the truck fall once the tire is off,then your screwed..
I doubt I could get the spare out from under the truck once a rear tire went flat,and who wants to lay under a truck on the highway in the rain ?..stupid place to store a spare in my opinion..
I want to get a battery powered impact to use on the lug nuts,the only drawback to those is the battery will likely be low or dead by the time you got a flat..but cranking the lugs off with a 4 way or ratchet sucks..
The last time I had a flat ,I was within walking distance of my house,I scraped a razor sharp granite curb going around a sharp curve and gashed the sidewall open..by the time I got the truck jacked up,had it lean over and come off the jack (I neglected to chock the front wheels!),and got it jacked up again,no easy chore,I had to jack up the frame first,block it up,then put the jack back under the rear axle ,and put the spare on,I thought I was having a heart attack..
That was when I put the floor jack in the bed--I found it in a free pile of scrap on a curb,it works fine but it had no handle,so I had to make one out of pipe,and I have to turn the gears to release the jack by hand with a wrench..I figure no one will steal it if they see no handle for it..but its HEAVY..
I am tempted to buy a lightweight HF floor jack to keep in the truck..