Comment on konadh324's profile
Thanks for the watch! Say, got any recommendations on car shops that can install some 3.73 or 4.10 gears on a mustang v6 for cheap? I'm talking like chains, unless the smaller places are the better bet.
Around me I know of several shops, but I highly doubt we live near each other. But basically every speed shop can do it. It's not a really hard job at all if your rear end isn't rusted. Personally I don't know if any chain shops do that sort of thing. But I also wouldn't be caught dead bringing a car to a chain place, most of the time they half ass their jobs and don't do a good job. I highly recommend doing it yourself if you can
Yeah, I was afraid it would be that way. I could work on it myself (our company lets us use the fabrication shop and after hours and my supervisor is a car obsessed guy), but I just got into this type of stuff like two weeks ago. I know replacing the driveshaft isn't hard, it's just the gears I am worried about. I would rather have someone who has been working on cars for a while either walk it through with me or do it for me than for me to just DIY the hell out of it and run into major issues down the road.
The gears arentt too bad of a job really. You can't really mess up a rear end easily. It just won't move right. Its not like a transmission where there's hundreds of moving parts. Always good to learn how to diy 
I looked into changing the gears and it doesn't look like it's that hard of a job, but since I'm very new to this type of stuff, I think I'll just stick with changing the driveshaft and look for someone else to install the gears for cheap (probably not going to find it for cheap, but worth looking into it rather than risk messing up and damaging something).
Yeah, I don't blame you, I've always been the trial and error type because putting it simply garages aren't cheap and I've got better things to spend my money on. But if you can, watch whoever works on it show you what to do, usually mechanics love to teach other people how to DIY their cars.