I run stock everything... even tires. (except for maghytech pans, at the moment)
When I go out for the weekend or week on the beach I'm loaded to the hilt.
Trailer is about 6800lbs full (TT-26ft body),
have 60 gallons of fresh water in the truck, lots of firewood.
My wife packs like we're eating and dressing for a month.
Enough beer for everyone that stops by...
When towing out onto the beach I drop my tire pressure down to about 12lbs (all around), if it's a really dry summer and we have drought conditions I go down to 9lbs in each truck tire.
The trailer gets aired down to 20lbs. . worse case 15lbs.
when I'm not towing, I air down to 20lbs in the front and 15lbs in the back. If it's real soft from a drought, when not towing I"ll got down to 15lbs in the front and 9lbs in the rear.
At worse, I drag the bottom of my pumkins with stock tires/aired down.
I use 4low and take it easy. Speedlimit on the county owned areas is 5mph. So there's no speed to carry me through the real bad areas... (the rangers hide in the areas between the dunes and between daytripers, it's strange to see someone get pulled over in the middle of the beach. . )
Once I have the funds and the stock tires are worn out, 305's are going on. The more floatation the better. Not only are they wider, but when you air down they make a longer footprint. No matter what tire you have, airing down is essential to not tearing apart your transmission in the real soft stuff and treading lightly. Even with the stock tires, I can air down enough for the truck to coast to a stop (in neutral) even during the most driest times.
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In case you pop a bead, make sure you have a compressor that can reseat a bead. Carry jack boards and a shovel. Fresh water and antifreeze incase you overheat, I never had. . but I always carry in case... this way it never happens.
If you do get stuck, rocking it can help or can get you stock more as the tires try and gain traction. .
So stopped, look, dig and air down more. 7lbs is the lowest you want to go, thats about how much air you generally need to keep the bead set. Get all 4 tires on an even plain, get your forward path clear.
With very low air pressure in the tires (below 15lbs) becarefull how you cross tracks and objects so you don't pop a bead.
Watch out for things in the sand. They can be a lot larger than they appear. A new bee to beach driving drove over what looked like a small 2x4 with his new Excursion, the LONG 2x4 popped up and knocked his fuel line loose and the brand new ford burnt to the rims.
46wdx, your profile on the message didn't say where you are from. But the org I'm with gives beach driving classes a couple of times a year. We have one happening this Sunday.
If your on LI, let me know. . email me. I can get you registered, it's free.
Bob