In the sand!
Senior User
Joined: Aug 2000
Posts: 473
Likes: 1
From: Richmond, CA
In the sand!
I haven't yet. But I've heard between 6 and 10 psi. but don't quote me on it. I have been getting my rig set up to do that at some point. I ended up installing an air compressor inside the engine com-partment. It fills up 33" x 12.5" tires in about 2 minutes with just the compressor itself. Not a good idea to drive on surface streets on that low of pressure on the tires(my 2 cents worth on tires) If things work out I will be mounting an air tank today. I'll be going into work to have a mechanic friend weld up a bracket for me under-neath the cab between the frame.
Hope this helps
Hope this helps
Senior User
Joined: Jun 2001
Posts: 236
Likes: 0
In the sand!
I've always been told that to run that low of tire pressure safely, that you should get beadlocks put on. I'm not sure if that is true or not, but it is probably something to look into if you are going to be running that low on air!
New User
Joined: Nov 2001
Posts: 1
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In the sand!
I go to the beach with 13-15lbs and it goes good. I would stay in 4 hi and don't get on the gas too hard or you will dig in and get stuck. Watch the temp on the oil, power steering and tranny it will increase...
Bob
Bob
Senior User
Joined: Jul 2001
Posts: 189
Likes: 0
In the sand!
I spent a week in Pismo beach a couple of months ago. I aired down to about 8 psi. I was able to do 90% of the dunes in 2 wheel drive. I have 35" BFG mud terrains on 15x10 rims. The trucks are great in sand, I never got stuck, when i did I put it in 4 wheel drive and pulled myself right out.
Junior User
Joined: Nov 2001
Posts: 51
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In the sand!
I live in Florida. Whole lotta sand. I try to stay out of the saltwater but whenever I ride in the sand I keep it in 4hi all the time. In 2 wheel drive if my back tires loose grip it usually digs a hole real quick. But lock them hubs & I jump right out of it,never a problem even when rear axle is on the ground.So I just keep it in 4hi. 31.1050 DUNLOP A/T - AIR STAYS AT RECOMENDED PRESS. (40psi.)
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New User
Joined: Mar 2001
Posts: 18
Likes: 0
In the sand!
Every different brand of tire is going to respond differently to air pressure adjustments. Start out around 15 psi. or so and keep lowering the air pressure until your happy with your Broncos flotation in the sand.
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Senior User
Joined: Dec 2000
Posts: 127
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From: Coopersville
In the sand!
I run my 83 Bronco, with 31x10.50x15 BF Goodrich All-terrains, on Silver Lake sand dunes all the time. I usually run 5psi in the rear tires and between 8-10psi in the front tires. The truck makes it everywhere in 2wd. I run higher pressure in the front tires to avoid popping a bead during turning. I would still recommend keeping turning to a minimum, and if you need to turn sharp go slow.
Freshman User
Joined: Dec 2001
Posts: 45
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From: Tillamook United States
In the sand!
I've got a 79 bronco with 39" mickey's and I run between 7 and 10 psi. but those are much bigger than your tires and also bias ply. But I've also got a 68 F100 4x4 with 33" yokohama geolanders and I run 10 psi. front and 8 psi. rear. They flatten nicely and I never been stuck or ever momentaily detained in either.
Senior User
Joined: Oct 2001
Posts: 268
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From: North Texas
In the sand!
>Has anyone used their full size Bronco on the beach (in
>sand). If so, what tire pressure did the best? Note : I'm
>running 31 x 10.50 R/S LT Michelin tires. Thanks, Pete
Pete:
With those tires, you should have no problem running your regular highway pressure.
Uh, that's with 4WD engaged, of course! And you want to make sure your hubs are actually locking before you get too far from a hard surface.
I've run the Texas beaches with 10x15's on my Bronco, and even with my 2WD Explorer with no problem as long as I drove carefully.
>sand). If so, what tire pressure did the best? Note : I'm
>running 31 x 10.50 R/S LT Michelin tires. Thanks, Pete
Pete:
With those tires, you should have no problem running your regular highway pressure.
Uh, that's with 4WD engaged, of course! And you want to make sure your hubs are actually locking before you get too far from a hard surface.
I've run the Texas beaches with 10x15's on my Bronco, and even with my 2WD Explorer with no problem as long as I drove carefully.
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