SO apparently the numbers lie.... I went to walmart today and went back to the tire section.... I somehow found a 30x9.50x15 in a Liberator All Terrain.... i took it over to the BFG Land Terrain tires, found a 325/75/15(the tire I have) and sat them on the ground... side-by-side..... There is alot more size difference than I expected.... It appears to be way more difference than the online charts say it is... im definitely sold on a 30x9.50...... getting the BFG AT on saturday 10/28. . .

 

the 30x9.5 is an inch taller and 1/4 inch wider then the 235/75's.

 

my 30x9.5 ATs didnt rub at all. i bumped up to a 29x10.5, they rubbed. then went to a 31x10.5 after the cranked bars and my 2 inch bodylift. still can make then rub the tops of the fenders under full compression, but i also have 2wd rims. if i had them on the stock rims, they would probly not rub the tops of the fenders.

 

I have a 2000 blazer zr2 le whith the off roud package and it has 31/10.5 and it works good[IMG][/IMG]

[IMG]local://upfiles/4278/4450BB1FBDB04A3788442EB74BD627BA.jpg[/IMG]

 

They don't rub because the off-road package has higher suspension obviously.... we're talkin bout stock height blazers

 

Old thread but Hey!
My 31x10.5 15s on my Lt 4 door Blazer rub on the right hand wheel arch something terrible. Even after trimming the bottom corner arch extension. Ive cranked the torsoin bars up max and still no joy.
fitted 1.25" spacers to the front no joy.
2" Body lift next, but looking at the space thats available while the wheel is turned, offroading the car would be a bad idea. Amnd as a previous post said the 10.5 tire rubs the chasis when turning.
31's are just too big for a stock bog standard car.
The only other option is chopping or moving the body forward on the chasis to acomodate
a decent size tire for off roading. But thats going to the extremes
Oh! the joys ofimproving a vehicle you really like.

 

Unless I am wrong. 30's should have no issues at all on a stock. I've Ran 30's for the last 4 years with no lift ect and not one rub. minus bottom out. now I went had a 2inch body lift put on and now have 31x10.5 and the only time I rub is when I am turning into a driveway ect they rub a little. Going off what I have been told I am trimming about 2square inch of metal off the fender well and I should be good. I did whack it back with a rubber mallet and helpped a bunch, but still need to trim a little.

 

I didn't have to trim at all with my body lift.

 

To fit the 31".
Remove the spacers, they only make the problem worse.
Install the 2" body lift, that will get you the clearance you need.
Crank your torsion bars back down and save your suspensiona nd steering parts from early retirement.

 

The important factor here is width. While a 31x9.50 ([:'(]) would have a few clearance issues, a 31x10.50 will have all the problems seen above. My 30x10.50s rubbed untill I took the measures to stop that...so not all 30s fit fine.

Just trying to clarify