I know I know this but, just to make 1000% sure. If I change the gears in the rear axle, I have to change the ones in the front axle as well, right? I spent 2 years rebuilding this thing and read everything I could about a Blazer ( and think i know it all, hehe) but I just don't feel like spending twice the cash on these gears. I know gears don't cost much but with the money I spent rebuilding this thing already, my wife will kill me if I spend another dime in this thing. She doesnt know about the rims, nerf bars, and other doo-dads i plan on adding soon.