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Awd drivetrain sensitivity to varying tire sizes

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dsms4ever

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Discussion starter · #1 ·
I know that you have to have the same tire size but my stupid new talon that i bought came with 3 different kinds of tires, so i put on my rims and tires from my other talon that's getting worked on right now because i wasn't sure if it was ok to have different brands of tires was ok because of varying overall tire diamater differences.

I bought a set of 215/55/16s that were on steelies for 100 dollars today to use on the car, but then the steelies were like mm's away from fitting, must have been off an american car or something, and it's going to be like 80 dollars to have the tires switched around on the stock rims.

I wanted to replace the wheels that were on the car because i want to sell them but it's dumb that i'm having to spend 180 dollars just to replace them.

Would it be ok to just run the three different brands of tires as they are all like brand new and all season tires. I checked the online specs for the tires and found that the two coopers are 11/32 tread depth, and one of the others is 10/32's, and i couldn't find info on the other tire but it looks the same.

What do you guys think.
 
#2 ·
As long as your have the same tire size it doesn't matter. Just make sure you pair them up. Put the coppers together and the others. I had two different types of tires on my car for almost 6 months. As long as they are the same size your fine.
 
#6 ·
What are the tire sizes for them? If all 4 are the same size as you stated before they will be fine as long they are remotely close in tread wear. I would advise how ever to start saving up for new tires. Make sure you put the two same tires on the front and the different ones on the rear. Just to be safe.
 
#7 ·
$80 to change tires? If they arent low-profile Id just do them myself. If you have 2 huge screwdrivers and something to break the bead with you can do it.
And you should be fine with the tires for a little while, as long as you dont have 215/60 on the left and 195/50 on the right.
 
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#10 ·
Absolutely not.

As quoted from tirerack.com - http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=18

"As an example of different tire diameters resulting from tires worn to different tread depths, we'll compare two 225/45R17-sized tires, a new tire with its original tread depth of 10/32-inch and a second tire worn to 8/32-inch of remaining tread depth. The new 225/45R17-sized tire has a calculated diameter of 24.97", a circumference of 78.44" and will roll 835 times each mile. The same tire worn to 8/32-inch of remaining tread depth is calculated to be 1/8" shorter with a diameter of 24.84", have a circumference of 78.04" and will roll 839 times per mile. While the difference of 1/8" in overall diameter doesn't seem excessive, the resulting 4 revolutions per mile difference can place a continuous strain on the tires and vehicle's driveline. Obviously, the greater the difference in the tires' circumferences, the greater the resulting strain."

I would NOT EVER mix tire sizes on my car, or tires with an uneven wear. Remember than tires from different brands do not usually have the same outside diameter - A kumho 225/45/17 is most likely not the same as a BFG or Falken tire. Don't mix tires. Don't mix sizes.

You do not want any difference in circumference on our AWD cars!
 
#14 ·
If you have a nissan silvia like your profile says why are you even asking that question? But if you have an AWD dsm I would recommend getting like rims and then putting those tires on but I would imagine as long as the tire tread is the same it wouldn't matter. I wouldn't risk it though with two different rim widths.
 
#15 ·
ah yes i was afraid of that answer, I kinda figured since the rears would be more rotating mass than the fronts it would have an effect on the drive train, but i didn't imagine it would be that drastic since i was planing on putting on the same tires front and rear. (same brand and tire 235/45 R17) however you are right i rather not risk it and have drive train damage due to the staggered set up.
 
#16 ·
The diffs will have compensate for the varying tire sizes. My Evo's tire sizes varies very quickly, even though the tires are new, of course the front tires wear out quicker than the rear, I just rotate them. As long as the tire sizes are the same and tread is pretty close, you should be fine. Unless your front tires are bald and rears are new, that might not be too good. And running different sizes sounds like it'll be death for the viscous coupling.
 
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