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time for new tires - should I go with 315/75/16 ?
Time for new rubber. Bigger rubber. Old tires were 285/75/16 and they looked small in the wheel well. I'm using stock rims. Truck has a 2.5" leveling kit...I've read that 315/75/16 will fit. I think that a 35" tire (approximate size) would look about right on the truck. Is there anyone out there with that size tire that likes it, dislikes the size or has any opinion or driveability, looks, or anything else.......?
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Remember for every 4 pound of rubber you add to the truck you going to require 1 more HP to keep it rolling which in turn means you MPG's will drop. If you doing is for show it going to cost you in fuel every day to just show off.
I normally alway suggest smaller lighter tire for MPG purposes. Even for offroad use I run 235's or 265's for offroad stability keeping my center of gravity down. I truly work in offroad conditions getting firewood, working with the local fire dept chasing wild fires, etc.... 265's http://i42.tinypic.com/qrnjg9.jpg My 235's... http://i55.tinypic.com/2icbf2u.jpg |
I went with 305/70/16's. These fill the wells better than on my brothers who has 315's... The only issue I've found with this tire size is availability.
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I have 285's on mine right now but I am thinking about dropping down to 265's. However, like lobsterman said the bigger tires do look better but fuel aint getting no cheaper
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Originally Posted by Grady263
(Post 992117)
I have 285's on mine right now but I am thinking about dropping down to 265's. However, like lobsterman said the bigger tires do look better but fuel aint getting no cheaper
$4.109 to $4.259 here in Idaho. Every where I go is at least 100 mile trip. MPG mean much more to me than looks. :humm: |
$3.99 in central TX...And Tire size should be factored WITH ring n pinion ratio. I'm glad I have 305's w/4.10's. If I had 3.54's I'd go with 285 or 265...just depends on price for Coopers.
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25% difference between 265 and 315 in rolling distance. That's a lot higher gearing especially with an automatic transmission. Each tire size jump is about 5% change in circumstance. At speedometer reading of 60 you'd be actually going 80. If you tow, that's a big difference. You'd be best to change gear ration in both axles if you go that route.
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Originally Posted by joecool911
(Post 992164)
25% difference between 265 and 315 in rolling distance. That's a lot higher gearing especially with an automatic transmission. Each tire size jump is about 5% change in circumstance. At speedometer reading of 60 you'd be actually going 80. If you tow, that's a big difference. You'd be best to change gear ration in both axles if you go that route.
You tires are going to weigh roughly 100-120 pound with rim and tire. Nearly double the rotational mass of what 235's so your going to require more torque which now put more strain on your Auto Trans then since the tires are bigger you brakes don't work as good because the tire leverage again is greater so brake parts wear more. Then since we are talking tire leverage again the ball joints, tie rods ends, and track bar all wear more and fail sooner. The the pure stress on the steering box typical fails sooner also requires the steering box brace. It goes on and on. Seriously consider everything before just slapping on tires because they look cool... |
Originally Posted by joecool911
(Post 992164)
25% difference between 265 and 315 in rolling distance. That's a lot higher gearing especially with an automatic transmission. Each tire size jump is about 5% change in circumstance. At speedometer reading of 60 you'd be actually going 80. If you tow, that's a big difference. You'd be best to change gear ration in both axles if you go that route.
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Originally Posted by tiremann9669
(Post 992224)
Statement makes no sense considering 265 and315 are widths :humm:
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