just the other day while cruising down the highway (70mph) my speedo buried itself on the deep end(120mph). It seems to be working close to accurately at sub 40mph speeds but just keeps climbing after that. I know jack about speedos. Any advise would help. Everything is tight between the sensor and the speedo itself.

 

A simple fix at times is pulling the speed sensor out and cleaning the metal shavings off of it (it is a magnet) and reinstalling it....

 

had pulled it all apart and cleaned it.... put it back together no change. as of yesterday it spun all the way back to zero and aint moved since.

 

so i picked up a whole new dash mounting kit because mine was in such bad shape. Came with what i believe is a 2:1 speedo. I have a 1995 FLSTF front with 16" wheel.... what drive unit do i need to make this work out for me?
thanks folks