i got a 93 2wd blazer and had heard rumors and talks of a 12 bolt fitting underneath these and p/u. does anyone have any knowledge of this.
upgrading to heavier components due to stock 10 bolt not liking torture of the vortec so definatly wont like 283 bein built for it.

 

It's going to be quite a bit wider if it's from a full size. You might want to check your local laws for what is allowed concerning tires extending beyond the body.