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H3 What is the best Tire size????

4speedfunk

Well-Known Member
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4,250
Location
Tardville
Your zip code has a lot to do with how satisfied you'll be. If you live in a hilly or mountainous region...you'll hate bigger tires. Also...it's important to note that most of these gearing complaints are limited to highway use. Pretty much everyone loves 35"s when cruising around town or off-roading. The real issue occurs at 65 to 70 mph. The 5cyl simply needs more grunt.
 

Happy Hummer

Well-Known Member
Messages
1,464
Location
Wisconsin
I'm running a 265 75 16 right now in an semi aggressive tread pattern and gas mileage is less the gf's with civilized street tires. I've had little trouble getting through 1/2 foot of snow on any average day in winter wisconsin.

Chris
 

derian06

Red Rockett
Messages
1,866
Location
Madison, AL
what do you mean by right back spacing and what's 6x5.5 mean

Back spacing is how far the rim sits out or in from the hub. Stock is 6.25 back spacing and rancho lofted rigs require a 4.5" back spaced rim or a 1.75" spacer which makes the stock rims have a 4.5" backspacing.
31bf32a8d6c366d86fd301e86145ac33.jpg
6x5.5 is the bolt pattern that h3's have.
 

amrg

Well-Known Member
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2,317
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Qatar
Back spacing is how far the rim sits out or in from the hub. Stock is 6.25 back spacing and rancho lofted rigs require a 4.5" back spaced rim or a 1.75" spacer which makes the stock rims have a 4.5" backspacing.
31bf32a8d6c366d86fd301e86145ac33.jpg
6x5.5 is the bolt pattern that h3's have.
Stock rims have a 5.74 backspacing. Remember stock wheels are 7.5" wide and have a +38mm offset
(7.5+1)/2+ 38/25.4 ---> 5.74
 

USMC_315

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Messages
590
Location
Northern VA
attachment.php

since I'm having trouble understanding all this, will these 17" rims work on my H3, or do I need mods to make it work?
 

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amrg

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attachment.php

since I'm having trouble understanding all this, will these 17" rims work on my H3, or do I need mods to make it work?
17x9 with 35" tires you will need to rancho lift

17x8 with 35s fit stock H3 (my current setup)
 

Scarsman

Sponsor
Messages
1,561
Location
Monroe, WA
Yes, they will work. 315 is the section width in mm. So they are both the same width.

The second number means the sidewall height is that percentage of the width. So a 315/75-16 is taller than a 315/70-16 because the sidewalls are 75% of the width, as opposed to 70%.

The last number, of course, is the wheel diameter.

A 315/75-16 is a 35" tire.

A 315/70-16 is a 33-34" tire.
 

USMC_315

Well-Known Member
Messages
590
Location
Northern VA
Yes, they will work. 315 is the section width in mm. So they are both the same width.

The second number means the sidewall height is that percentage of the width. So a 315/75-16 is taller than a 315/70-16 because the sidewalls are 75% of the width, as opposed to 70%.

The last number, of course, is the wheel diameter.

A 315/75-16 is a 35" tire.

A 315/70-16 is a 33-34" tire.

ok, thanks for clearing that up for me
 
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