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Tire size


720newbie

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What is the biggest tire size people have fit on there truck with stock height and a small torsion bar cranking. I'm wanting to go look at a set of 265/75/16 but am not sure if they will fit

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That's a super tall tire for a 16. Especially at 265. 

 

The 13's that came with these were 70 or 75 series already. 

 

 

 

 

 

The side wall height(70) is the percentage of the width. 

70% of a 265 is a BIG tire. 

 

What wheels are you trying to use?

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I think the 720s were 195/75R14 standard and 205/75R14 for the aluminum mag while 4x4s got 215/75R15s.

 

The 4x4 with the most clearance could run a 29" diameter tire without too much trouble. The problem with this is the extreme loss of power as the Z24 powered 720s also went from 4.375 down to a terrible 4.11 differential

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185/75R14 are 25.5" diameter 2wd 720

215/75R15 are 27.75" 4x4 720

265/75R15 are 28.8"

265/75R16 are 29.9... 29 is considered the cut off for stock ride height 4x4 720 tires.

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185/75R14 are 25.5" diameter 2wd 720

215/75R15 are 27.75" 4x4 720

265/75R15 are 28.8"

265/75R16 are 29.9... 29 is considered the cut off for stock ride height 4x4 720 tires.

Unless I'm calculating it wrong, I'm pretty sure 265/75R15 is 30.65" and 265/75R16 is around 31.65

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Unless I'm calculating it wrong, I'm pretty sure 265/75R15 is 30.65" and 265/75R16 is around 31.65

 

It is closer to 32" when installed on a 7" wide wheel. I had some on my 4wd Frontier Crew Cab.

 

 

These are helpful when figuring out tire sizes:

 

http://tire-size-conversion.com/tire-size-calculator/

 

http://www.miata.net/garage/tirecalc.html

 

http://www.1010tires.com/Tools/Tire-Size-Calculator

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Corrected. Those were for 235/75R15 my bad.

 

265/75R15 and 265/75R16 are too large and will rub. 29" on stock truck will rub slightly on bumpy turns 4x4ing. Raising the torsion bars or a body lift might reduce this.

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I have the 265/75r16 on my truck on late 90's z71 wheels with the torsion bars cranked and about 2" longer shackles in the rear.  Almost all the finder trimming you can do on the front closest to the floorboard and if turning and more than a slight hill they rub.  But the tires were free to me and close to new.  By the way it is a 85 720 4x4 regular cab.  Oh and turning to sharp on flat ground they also rub.

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265/75R16s are 30.63" tall. Read ronny's post above yours... they rub. 31's will be worse. Now if you drive only on the street you can probably get away with something over 29".

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