I need some new(newer)tires.  I have been wanting to go with 235/75/15.  I wanted to get LT rated tires.  But now money has gotten tight, and the only used tires, if you can find them, are passenger rated.  Does it really make that much diffrence? I will be going off road this comming summer, and I have been told that the extra sidewall ply helps.  I have seen some agressive tread on some P rated tires.  I have a 4dr kick.
Thanks
Jeff

Define offroad.  Rock crawling or any other option that will have you dragging those tires over sharp objects such as rocks, stumps, logs, ledges, sticks, twigs, yadda yadda etc etc and you might want to find a good LT tire.  Checked out your local Walmart?  Their Super Sport HT tires go pretty cheap.

Anyways, if you're seriously planning on abusing the tires I say save for the LT tires.  If you're just going to be bombing down 2 tracks, playing in known safe mud, sand without a lot of jumps and hard landings, etc you should be fine.  I had a set of P-rated 235/75R15 muds on my last Tracker and they held up well.  I kinda wished I had spent the extra $60 and gotten the LT rated tires but they worked well for me.  Will this Tracker's next set of tires be LT rated?  You bet.  The difference in sidewall stiffness is amazing from experience with other vehicles.

Ok I just want maximize my stock DD for the "jeep" trails in the Rockies of Colorado.  I have a jeep friend that had the BF Goodrich tire with even one more sidewall ply then the LT's.  He said the sidewall was too stiff, and when aired down, he would pop a bead regulary.   So this is why I question...

In that case I'd definately recommend LT rated tires.  Colorado is known for it's rocks.

I think he's either going too low on the psi or has too wide of tires.  BFG's aren't known for their stiff sidewalls.  No offense to your friend but I'm thinking the error is in his setup, not the BFG's.

Well I did it.  I just SPENT a lode of money buying new tires.  Got the LT's.  The thing now feels like it has power steering.  (I wondered if it was working before.) So far I see only a sight RPM to MPH diffrence from the 215/75/15's I had on before.  Oh buy the way, it feels like it is sitting up a lot higher now
Siped them too.  Now I am ready for more snow and ice..... BRING IT ON!
Jeff

Good choice.  What brand did you get?

The steering and firmness feel is the fact that the tire doesn't squish as much.  I had the same exact thing on my Dodge Ram when I went from some P265/75R16 Wrangler RT/S's to 285/75R16 muds.  I had actual truck tires with strong sidewalls and they wouldn't give and squish when I went around corners.

Well I took a trip to Trinidad,CO on I-25 along the front range.  I do have to say the gearing has changed. I cant really start out in second gear now. I had to shift into 3rd gear on one hill.  I saw 4th gear alot.  There was a little wind.  My wife said on the news they said there were 60mph gusts.  Do you think that had somthing to do with it? I was able to go pretty good about half way back, when the wind was not so strong and or changed direction.  I really got blown around this morning.  My speedo use to read a few mph slower than I was going, but now according to the roadside radar, it is dead on!  I think the ride is stiffer, might be the sidewall and psi.  The recomended air pressure is 50.  I got dominator tires from discount tire.  Now that I think about it, maybe I wish had not gotten the free replacement warranty.
Oh well, maybe I will need it sometime. 
Jeff

I wish I had saw this topic sooner.  I have M/T retreads by Hi-tech retreading.  http://www.high-tec-retreading.com/  I've had them for a year and a half, about 7000 miles.  I've been very happy with them.  They work great offroad too.

50 lbs    I hope your not running more than 20 lbs or so on ice.

The 50 lbs on the side of the tire is NOT the recomended psi, that is the MAX psi needed if you run the MAX weight on the tire, which will be around 2,000lbs per tire.....the recomended tire PSI is only written inside your drivers door by Suzuki, mine says 23psi.

The tire manufactures have no idea what you are putting it on so they give you the MAX psi which will make a light Suzuki ride like a log truck and wear out the tire in the middle much faster.

With stiff LT tires you will want less then the stock psi, more like 19-21psi on rd., and about  10-15psi off rd.

I wish I had saw this topic sooner.  I have M/T retreads by Hi-tech retreading.  http://www.high-tec-retreading.com/  I've had them for a year and a half, about 7000 miles.  I've been very happy with them.  They work great offroad too.

I do have to say I ordered some tires from HighTec in mid November and they are only NOW shipping the tires.  Apparently the Green Diamond tires take much longer to make than the regulars and they don't seem to be upfront about the time it will take them to make them.  I kept getting "next week", "a few days", etc for over 3 weeks and finally they say they shipped them today.  Hopefully they prove as good as the ones I've seen in action because I was at the end of my rope with the company.

The 50 lbs on the side of the tire is NOT the recomended psi, that is the MAX psi needed if you run the MAX weight on the tire, which will be around 2,000lbs per tire.....the recomended tire PSI is only written inside your drivers door by Suzuki, mine says 23psi.

The tire manufactures have no idea what you are putting it on so they give you the MAX psi which will make a light Suzuki ride like a log truck and wear out the tire in the middle much faster.

With stiff LT tires you will want less then the stock psi, more like 19-21psi on rd., and about  10-15psi off rd.

Thanks for the tip.  I will air down tonight.  I will check my door.  I was starting to not like the ride.
I wish I had heard of High Tech too....
Jeff

Man what a diffrence in the ride, especially on the 1/2 mile dirt road on the to way house. I don't need to the long way around on the paved road now.  The tire shop put the pressure at 35.  I aired down to 23.  I will air down to 20 and see if there is any diffrence.  It has snowed the last 2 days, and the traction is very good.  I still haven't seen the need to use 4wd. 
Thanks guys
Jeff

I think....emphasis on the think...when I had 235/75R15 muds on my '93 2 door I had it at around 21psi.  You can always do the chalk test to figure out what psi the tires need but then where you're at, like here, is probably a bit too wet to do it now.

Ok I was going to ask about the chalk test, but I can guess....
draw a line across the tire and see if the chalk wears off evenly, right?
Your right, it is too wet now, but I live in a semi arid desert, it will be dry enough later. how many miles do you give the chalk?
Jeff