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Wheels & Tires Semi-Tech General discussion of wheels and tires for the Ford Ranger.
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Old 05-17-2005
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Airing down in the sand

Ok, I know a million airdown topics.. I was running my front tires at 15 psi and the rear at 10 psi this weekend at the beach. Could I go lower safely do you think? The tires are 285-75-16 BFG AT's. The problem is they are D rating so they do NOT give much when aired down to the above PSI due to thickness. Thanks
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Old 05-17-2005
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if they are mounted on the stock rims, then the tire should be wide enough to not worry about popping a bead at 10 psi. you have to be careful on the road though, driving for more than a few miles will overheat the tires, and taking a turn could pop the bead. run it at 10 psi all around, no lower, but fill it back up before you hit the streets
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Old 05-17-2005
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Yes I do. Just wanted to know if I could run lower.. But I guess I will stick with that.
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Old 05-17-2005
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I wouldnt go lower then 10psi because you dont have bead locks on your wheels so anything lower with a wrong move might pop the tire off the bead
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Old 05-17-2005
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You need to air down in sand? I've never aired down and we have tons of sugar sand here...
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Old 05-17-2005
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285, those are like 33x12.5 right? What is you wheel size 7 or 8 inches wide.

On my stocker 31x10.5R15 bfg a/ts I've been down to 12 psi front and rear. The rule is keep going down until you lose a beed than go back to your last pressure. But 12psi should work great
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Old 05-17-2005
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Ha ha! Unless you lose a bead in the MUD! That's a mess. Wouldn't want to do that.

I'll be trying 15psi in these 35's next time I'm out.
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john your 35s should be able to use less pressure, since the sidewalls are so strong on the larger tires. i know in my bronco i had trash 37s on it that i ran at 5 psi before they even started looking low
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Old 05-17-2005
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Yes, but I think I'll start with 15 and see how performance is. I really don't want to be poppin' off no beads!

I'm thinking I'll get down to 10 no problem -- but I really don't think any lower since I can only "crawl" so much with the 4x2. Since even with the locker I need momentum for somethings -- and momentum and too aired down do not mix. Too easy to slide into/against something and push the tire in before you can do anything about it.
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Old 05-17-2005
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damn bob you never said you had 37s on your bronco....
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Old 05-18-2005
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Quote:
Originally Posted by n3elz
Yes, but I think I'll start with 15 and see how performance is. I really don't want to be poppin' off no beads!

I'm thinking I'll get down to 10 no problem -- but I really don't think any lower since I can only "crawl" so much with the 4x2. Since even with the locker I need momentum for somethings -- and momentum and too aired down do not mix. Too easy to slide into/against something and push the tire in before you can do anything about it.

silly, silly 2wd
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[sniff] Go on guys, kick me again...I can take it...[wipes snot from nose]
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[sniff] Go on guys, kick me again...I can take it...[wipes snot from nose]
*coughstraightaxleswapcough*
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Old 05-18-2005
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NOW!! BACK! BACK!
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Old 05-18-2005
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You guys are the best!

[the best WHAT I'm not sure...]
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Old 05-18-2005
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PM John....
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It's AM here, Bryan... ...maybe you should open your eyes and see that it's morning?...

Replied...
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Old 05-18-2005
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I aired down to about 15-20lb the first time I went out onto the beach in Corolla on the Outer Banks. When I went again last year, I didn't even bother, leaving them all at about 35 or so. I didn't notice a difference in handling.

What I did notice was when my F$&*ing electronic transfer case decided not to shift out of low range.
http://www.offroadrangers.com/forums...ad.php?t=17942
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That could make for a LONG drive home....
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Old 05-18-2005
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Quote:
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You guys are the best!

[the best WHAT I'm not sure...]
WE AIM TO PLEASE!!!
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i aim to try.

john, did you go off topic again? i swear...... i know ive told you before, i WILL banish you to the photography forum. dont test me.
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Old 05-18-2005
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Banish him to the testing forum. Doc too for excessive smiley use. haha
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excessive smiley use, i like that one!!
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