Anyone run 245-75-17 or 18s?

tenguns

Member
Okay - before I get torched for not using the search function... I have. Just I can't seem to locate the right post! May need a lesson in searches. Maybe thier is a max tire size by gen & lift thread, but I've not been able to find much unless you're talking about tall "wide" tires.

I'm into off-road functionality - not looks per-say and am pulling from the days of the model t's when the thought and premis I was taught was that extra tire width on slipery surfaces was not your friend. Skinny "tractor like" tires were better at scratching thier way down to the hard stuff.

So my train of thought is to build my new truck with the tallest tires - for true ground clearance - but also the narrowest tires I could get. I don't care how it looks to the posers - only how it performs both offroad when i need it and as a daily-d.

When appropriately regeared - I'm thinking this set up will get me the maximum added real ground clearance - number 1 priority, less road resistance and added traction - with less likelyhood that there would be rubbing on the UCAs and @ the firewall / mudflap point.

Has this subject been covered?... Thinking today of changing out the stock 265-60-R18s for something like a "245-75-17s". Maybe the narrower tire will afford me a little more room to gain the hight.

Plans are to lift 3" when I can afford which should give me a little more room - and know I might have to lift first - but would really like to establish the tallest tires you can run on a 4th gen - with and without lift if you keep the width down? If you keep the width down - below standard, can you run 75's or taller on a 4th Gen?

Is there a common "logical" stepped approach on a build:
1. wheels
2. tires,
3. armor,
4. gears on a build.
5. lift

What's most logical? Please shuffle. Know they are somewhat co-dependant.

Lastly - does the old skinny is better for offroad vs looking better hold true. The tire guys I've spoken to believe it. Is tire width just a looks thing - unless you're running in sand? What about rock or mud/snow. Any thought on that?

I'll lift the truck ONLY to clear the taller tires - so I'm trying to get tall tires, maintain a low center of gravity and incidentally keep a little sheetmetal out of the brush.
 
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Well I would say the first step should definitely be tires.

I am running 255/75/17's BFG MT's, and although I have mine lifted you can fit these tires on an unlifted 4Runner with a little trimming. I like these tires b/c they are great off road and very cheap as they are the stock size tire for the Jeep Rubicon.

After tires I would go for armor or a lift, kinda depends on personal preferences.

As for narrow tires, they are better in about every sense except deep snow, sand and deep mud.

Here is a great article on that topic
 
Hey - thanks. Great post reply. Very informative. And the link... best article I've read in a while ... while noting it supports my suspisions... it also points out the liabilities. Huge.

Looks like I just need to narrow down the wheel choice and then try some "shoes" on... but looking to see how lift will effect the rub points and want to see how high I can go. I'm assuming new gears are a given. Then armor and winch....

Thanks -
 
VERY few guys regear their 4runners. And I mean very very very very few.

Those who do usually do it since they are running 35 inch tires, front and rear bumpers, winch, duel battery, roof basket, many fuel cans, skids, fridge etc...

I see no reason you will need to regear :D
 

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