so ive been trying to get my speedo to work still. i first started having problems with the speedo reading 20 over and then it would only read in the morning and then die off and stop working. and now it wont work at all..... ive checked the plastic gear on the sensor and i bought a new speed sensor and i also check the peice inside of the trany. it felt fine and i could spin it. it was not in peices. so now what should i check??? any help would be great..

Check the VSS voltage at the ecu and at the sensor to make sure your getting 9v.

well when i spin the gear it reads on the speedo should i still check the vss voltage?

Well if when its mounted to the tranny it doesn't give you a read out on the gauge and if you spin it when its out of the tranny it gives you a read out I'd say the speedo gear on the diff is bad.