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I have a 88 B2 that I drive to work each day and on the beach on weekends, my 225x75x15's have been working good but last weekend with a lot of beach traffic and no rain for weeks, the sand was soft and deep and I got stuck, I'd like to get wider but not taller tires, I still have the stock wheels. Any suggestions?
If you go one size up to 235 it is a little bigger but I think you will be happy, run an allteraine type tire and deflate a little and you will be good to go..
I agree with Desert Dog. Run them at 15-20 psi and just pump them up with a 12v portable at the end of the day. It takes about 15-20 minutes for all four tires P235s. The other benefit is if you do bury the truck to the frame rails by accident, sometimes you can over inflate your tires (35-40 psi) and lift the truck frame out of the hole it dug, after putting boards under the tires for traction.
You could go to either a 235/70 or a 225/70 both will lay down a nice wide foot print for sand. There are a few tire companies that offer 30x10.50 tires, the main thing for sand is you want low tire pressure... I usually run mine (33x12.50R15) at 10 psi. Also you don't want really agressive tread...ie mud tires as they have a tendency to dig a lot in sand. I have found a worn set of mud tires however perform very nicely in soft sand... my 33" Mud Kings have around 70% tread and perform awesome in sand at 10-12 psi.
Everybody here has the same way of thinkin....lower the air pressure and you will see adifference on the dunes. When I go surf fishing in NC, I let the psi down to around 10 and my 90 B2 will go where I want her too! I run 31x10.50 AT's
When I was running 31x10.50s on my 84 F150 I would run 10-12 psi I could go anywhere I wanted in 2wd...and that was with a 3.08 open rear end! Now with 33s, 4.10s, and a locker in the rear at 10 psi, it's nearly impossible to get stuck. Tire pressure is everything, last year I was up wheeling in the dunes I saw a 2wd 4 cylinder Ford Ranger running through the beach sand on stock street tires aired down with ease. He couldn't make it up any of the big hills but everything else was no problem. It does however take some skill to handle loose sand, be easy on the power starting out in 2wd or you'll bury yourself.