hello all my ranger buddies

i have a 2000 ranger 3.o and i am looking to go from a 235/75/15 to a 31/10.5/15 tire. not for off roading or anything but just a tougher tire.

my question...Will they fit a fully stock truck? how much of a difference are the 2 sizes. can i do 2 at a time? speedo is already off...so not worried about that so much.

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2000 Ford Ranger
2wd 3.73 gears
automatic 3.o

try this size calculator out.
https://tiresize.com/calculator/
looks like the new size is about 2 inches taller and 1 inch wider.
unless you have a bit of a lift or level I do not think they would fit without issues. If you want a tougher tire you could go up in load rating and ply. like a load E tire with 10 ply. If you want tougher like not so street boring tire you could keep the same size and just go to an all terrain etc. Some 2wd Rangers have 4x4 suspension without the front diff etc. like the Edge package, sorta like a prerunner in toyota speak or dessert runner in nissan. If your truck is one of those then yes, they will fit. My Edge package Ranger has 32 inch tires and they have plenty of room.

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2005 Ranger Edge Extended cab v6 auto Red

You can find quite a few LT 235/75/15 tires out there that have thick sidewalls and tougher treads. I am not sure why you need a tough tire on a 3300 lb small 2 wheel drive truck with only a 1200 lb payload rating. Even a standard 235/75/15 tire has a 2000-2300 Lb load rating.
The 31s will raise the truck up only 1".

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If you need a backup camera in a mid size truck, compact or subcompact car , or a compact SUV, it is time to see an optometrist.