Quote:
Originally Posted by oil pan 4
On taller wider tire:
Back in 2007 I'd had the truck for about a year so I was well aware of its MPGs and had been tracking them for a while. When I went from 235/75R15 tires to 13x10.5R15 tires I lost no fuel economy as far as I could tell.
I was not expecting that result. I was expecting to lose at least 2mpg since 2007 seemed to be the hight of the smaller thinner tire fad.
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I will probably do some experimenting with taller tires eventually, just not that much bigger. My main concern is that to get a 10% reduction in the overall gear ratio the tires wouldn't just be bigger but they would be huge on this truck. Like the way the truck sits now they would not physically even fit. The other set of wheels that I had on it the tires were only about 3% larger than stock and even they rubbed on almost every bump and turn. In order to get a 29" tall tire on the truck not only would I have to remove the lowering parts but I would probably have to lift the truck a couple inches. Which is the main reason that I would prefer to just swap out the axle. I can get an axle at a junkyard for around $100 and it would probably take me all of 2 or 3 hours to swap it in and asthetically it will look the exact same as before.