First of all don't kill me on this, but i have 31s on my blazer with no suspension or body mods, NONE, ZERO ZIP, NADA, annnnnnd no rubbing even on full lock. I must be either really lucky or really dumb. 31-10.50 r15 mastercraft courser ltrs will fit with no tbar crank. I just figured everyone would like to know , i can also flex and off-road and i have not rubbed at all. I dont know about 4drs though they might be more passenger oriented and sit lower. The tires tuck snugly up in there as you can see in the pic, i'm doing a little flexing.

 

you probably have the Z85 suspension package

 

ive heard of that how can you tell if you have it?

 

need to get your vin number decoded.

You can do this here Comprehensive Chevrolet, Saturn, GMC, Hummer, Cadillac, Buick, Oldsmobile, Pontiac, Geo, Dodge, Plymouth, Jeep, Chrysler, Ford, Lincoln, Mercury, Mazda Truck, Mercedes VIN Decoder

 

thank you giovannix12 turns out i have a zm6 suspension package, the previous owner peeled off the rpo sticker ive never even heard of zm6 does anyone know anything about it?