[BigD9146gt]

Yes there is. It involves dissasembling the speedo though, and i've often though about doing this by getting a spare speedo off Ebay. Heres what to do:

The black metal ring that goes around the glass is made up of two rings, an inner and outer. The outer ring is what is crimped to hold everthing together. Use a small screw driver CAREFULLY and slowly pry the hem up. Work around the parameter as many times as possible, bending the metal up little by little. The less you bend the metal each time, the less it will stretch, thus make it easier to hem back over when done.

Once the hem is opened, then slide the rings off. Make sure a soft pad is down so you don't crack the glass if it falls out.

Once the glass is off, then you can adjust it several ways.

1) Install the speedo back in the car without the face on it. Very carefully, lift the needle over the stop at the 0 mph spot. The speedo needle has a pre-tension on it, so it will stop on it's own past the 'needle stop'. Then mark with a the edge of a peice of tape where the speedo needle is pointing. Then pull the needle off, rotate it the distance 10mph would be on the speedo hash marks, and press it back on, and very carefully twist the needle back over the needle stop. Now start driving. You can check your pace with mile markers on a freeway and a stop watch. 60mph is 60 sec/mile,, or another car pacing you.

2) Use an electric screw driver and install a square drive in it that will fit into the back of the speedo drive receptical. With the electric screw driver on full blast, mark where the needle is pointing. NOW fallow the directions above for removing the glass and needle. Once you've moved the needle back 10mph and placed back on the needle stop, then use the electric screw driver on full blast and see if the needle is 10mph less (or whatever percentage less it would be at for 70 mph).

FYI: Palo Alto speedo is its own company. Even though they probably do good work, North hollywood is the king. The founder of North Hollywood was/is the US/West coast rep for VDO. Palo Alto could only dream of having as many old parts as North hollywood.

Have fun messing with the police! Don.