About how much do shops charge to install gears front and rear? I want to make sure I have at least an idea before I start calling around. I have no idea what a fair price is. Also, I need your thoughts on this: The fella who had the blazer before me completely rebuilt both 10b axles. Now of course a 10b can never be too good i suppose, but these are in pretty nice shape. New bearings, seals, the works. My driving style for the next few years is Highway and highway alone (it's my college campus cruiser for now). So I'm inclined to keep the 10b's and up the gears to better handle the 35's which I will soon be installing (procomp ats or bfg ats.. I don't know yet). Also, it's a 305/700r4/208 currently with 3.42. Do I go with 4.10s or 4.56? Fuel economy is the key so I'm thinking 4.10s right? Thanks fellas!