Quote (inc delivery) was £40 ish for replacement. New completer machine is on offer at the moment for £ 78.
I would prefer to get metal replacements for the gears.
In anearlier post http://forum.sausagemaking.org/viewtopic.php?f=7&t=8910&hilit=metal+gears vagreys said:
.....The LEM 5 lb. stuffer has metal gears and the Grizzly can be retrofitted with gears from LEM if the Grizzly gears ever break. That's my plan of attack!
Here's a link to LEM for the gears.... http://www.lemproducts.com/product/1470 .....
They are for for their 5lb vertical stuffer, model #606, which looks identical to the Northern Tool one.
Are these available nearer the UK?