brand new odometer gears and repair kits are available, straight from the manufacturer (me : )
Precision made from a tough, self lubricating engineering plastic (Delrin), these gears will never break.
For a single 20 toothed small gear, price is $11 including shipping cost worldwide (with tracking).
A repair kit consisting of a 20 toothed small gear and a 16 toothed gear pod, fixing the problem once and forever costs $21, also with shipping (these are discount prices, available if you purchase from me directly).
On eBay, you can find these products here:
Complete repair kit for Volvo 440-460-480
Single 20 toothed gear for Volvo 440-460-480
Gears for other Volvos (and other car makes too) are also available.
For complete product lineup, prices and quality feedback, please refer my eBay store:
http://stores.ebay.com/custom3dprintedparts
Should you have any questions or comments, you are more than welcome to contact me.
Peter