alright, well as you can tell already, my speedometer is dead and have absolutely no idea how to fix it, i have heard crankshaft sensor, speed sensor, and several other crazy stuff, i just want to fix it so i can know exactly how fast im going, and how much gas i have again. please help me, thanks

 

And any of those things that you mentioned could cause it. There's no magic formula for getting the solution - try having the computer scanned to start with and see if any codes are there. If there are, those will help start you on the right course.