This page is simply for products that don't fit anywhere else.

The -8 gearbox is now ready for shipping, this product is 3d printed in tough plastic instead of cast in resin, so the gears clip into place. a bit of cleanup is required, but it only involves cleaning off errant strands of plastic from the printing process. 
I have made a fresh set of molds for these trailers...I offer a 40 foot double axle version and a 45 foot triple axle version. These are simple kits which take 15 minutes to build. They look great with loads.