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Old 12-11-2018, 01:28 PM
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unusual Tire swap

Can put my 235/75/15-(chevy 1500) tires on my Ford minivan that calls for 215/70/15? It looks like there is enough room. But I am no tire expert at all. I want to get new tires for my full size chevy, and put those current tires on the ford mini van. Stupid idea? Will I break something?

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Old 12-11-2018, 01:57 PM
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Start by learning tire sizes. 235/75/15 = 235mm sidewall height/75% the sidewall height in width/15" diameter wheel.
So you want to put a tire on your van that's about an inch and quarter taller, and about an inch wider, than what is called for?

Stick one on the front, and see what happens. It may work out, but may scrub when turning sharply. Will probably work just fine on the rear though.
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Old 12-11-2018, 02:30 PM
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Speedometer is also going to read incorrect, you will be going 5 to 7 mph faster than the speedo says after the tire size swap.
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Old 12-11-2018, 05:22 PM
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https://www.discounttiredirect.com/l...ize-calculator
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Old 12-11-2018, 08:21 PM
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My biggest concerns were, putting more a lot stress on the trans than the correct tires, rubbing on the front, and my speedo being off. Its got large wheel wells, and actually doesnt turn very tight at all. It seems to have a huge turning radius for such a small vehicle. I just dont know how much these things are affected by a jump up in size, or several jumps up. I put much bigger wheels and tires on my old silverado 2x4. It drives much better. I cant tell how out of whack the speedometer is. Thanks!
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Old 12-12-2018, 07:47 AM
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a quick ck on speedo

Quote:
Originally Posted by briansansone View Post
My biggest concerns were, putting more a lot stress on the trans than the correct tires, rubbing on the front, and my speedo being off. Its got large wheel wells, and actually doesnt turn very tight at all. It seems to have a huge turning radius for such a small vehicle. I just dont know how much these things are affected by a jump up in size, or several jumps up. I put much bigger wheels and tires on my old silverado 2x4. It drives much better. I cant tell how out of whack the speedometer is. Thanks!
drive 60mph as per speedo and look at odometer when the "point zero" hit zero.....time it for 60 seconds and look at odometer. it should be exactly zero again
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Old 12-13-2018, 04:58 AM
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You most lkely have GPS on your phone. Find a straight stretch of road and hold a steady speed, cruise control if you have it, and see what speed the GPS indicates.
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