I'm currently building a 76 Blazer myself. I live up in the Black Hills of South Dakota. Kinda like the area down by Branson there in MO., just alittle more mountinous. I'm going mostly for trails up in the forest. So far I've installed a 6" suspension lift. I've got a set of 3/4 Ton axles I'll be putting in soon. Plans are for 35" tires to start off with, but I'd like to get some 39.5" tires in the future. I do plan on trimming the fenders, aswell as a 1" body lift and new poly mounts. I guess I should ask what you want to do with your truck. Depending on what your use is, will determend what mods you'll need to do.