If your speedometer works, but your odometer (mileage counter) is broken then you can almost guarantee it because your old primary gear has failed inside. These were lubricated with grease when the guages were built by VDO, and the grease eats through the gear over time, turning it into mush. 

This is a new gear AND pod set for Porsche 964 and 993 MPH, as you need to change both at the same time

You need to open your odometer and check that you have the following fitted BEFORE Purchase. There ARE variations, but this is the most common for MPH Cars. You check by counting the teeth and measuring the gears
  • 15 tooth small gear (approx 6.8mm)
  • 17 tooth POD (gear one side, spindle the other, approx 15.4mm). The original pod is normally red. 
We do have some of the other variations (like the blue/green 16 tooth etc) in stock, just check our other ebay items/eBay shop to purchase those instead....! 

Changing the gear is quite easy, and the best bit is its not only significantly cheaper than a replacement speedometer/odometer, but you also get to keep the date stamp on the back (which is a quick check to see if a car is clocked when buying (the date on the back must be before the car was built)). 

Repair TIP

To remove the gauge, first disconnect your battery, then carefully pull the gauge towards you (wiggle side to side). Its only held in by a rubber ring. Take a picture of the wiring for reference and/or masking tape numbering. Use some needle nose/pliers and wiggle (side to side) the little light bulb holders to remove them. 

Once you have the gauge out, take it to the bench, and then carefully (small screwdriver) pry up the lip on the back of the rim. Do 1/2 - 3/4 of it, and then you should be to pop the rim off, and disassemble the glass. Okay now the tip. First make a small mark for the resting position of the speedo needle. Then to remove, use your thumb and finger to gently pull it off, while twisting it anti-clockwise. Its sits on a tiny shaft, but the twisting motion, seems to release it. Thats the hardest bit.The rest is just straight forward assembly and disassembly.  

Porsche 964 993 (911) SPEEDOMETER Repair 15 & 17 Gear Set Kit Service 1990 to 1998