Has anyone been able to fit 33's on their 3/4 ton?

[fryeguy2]

I have a 71 3/4 ton GMC 2wd with rear camper overload leaf springs and it has coil springs in front. One of my buddies had the same type of truck, and said he fit 33 by 12.5 tires on it. But when i put on a set the back fit fine and the front tires wouldnt turn all the way because they hit the wheel well. Has anyone else been able to fit this size tire and if i lifted the front about an inch with rubber spacers, would i be able to fit these tires? They just barlely hit the fender. thanks.