Help!?!?speedo doesn't work

[Euromon$ter]

Well let me tell the whole story the other night my passenger hid low beam went out then yesterday afternoon my speedo stopped work and when my speedo stopped working my mpg guage won't show how much I'm getting when I'm driving down the road my mpg guage stays on 0 when I let off of the gas it goes to 40+ and then my coolant light popped on but it isn't overheating I have no idea wats goin on any help is really appreciated thanks in advance!!

[Kershaw]

the speedo gets its signal from the differential. i'd start there.

[b*saint]

If the speedo doesnt work, try a thong.

[agent]

http://instantrimshot.com/

[Euromon$ter]

Thanks for the info gonna check the gears in theguage cluster alsoand the sensor in the diff