At the risk of sounding like a complete moron, i'm going to ask anyways. I'm relatively new to working on 4wd's and building them up.. and I somewhat understand the whole idea of the gear ratio's and whatnot... but honestly I really don't get it all.... I have an 88 blazer how do I know what gears it has & how big of tires I can go without changing a bunch of stuff? Any place I can readup on this stuff? Basically I'm teaching myself everything as I go & I have to honestly say I just don't get it... so any info would be greatly appreciated!!