In a message dated 6/12/02 9:24:30 PM, thewestyman@MINDSPRING.COM writes:

<< These, I repair by carefully machining little collars to clamp over the

shoulder of both sides of the plastic gear. >>

You must have a Rivett 608 and not care about a profit.  Clamping rings which
are a proper force fit on the hubs of the wormgear of a VDO odometer can be
cut from the miniature brass tubing found in most hobby shops.  If memory
serves me right, 1/4" X 0.031 is the size which works, but check the sizing
first.

Rich