OMG! I've just noticed that smilies are available and so have used them to take the sting out of the technical stuff below... LOL
Anyone who’s bought a gearbox over the last 18 months

will almost certainly have a new, modified version

(Unless it was a SlimLiner or MicroMiser, which are unchanged).
A 23 tooth ‘hybrid’ gear (brass centre, nylon teeth) is now used at the axle

and this allows a grubscrew fixing throughout the full range of boxes

.
Previously, the Loctite fixing required on the axle gears

was the most requested change for the gearboxes and, for many, a major influence in their choice of box

. This new gear required a re-design of the boxes (although the range is basically the same

) and this included re-working the boxes, tightening up tolerances

and taking care of sideplay within the units to make a more precise job

. The 23 tooth (instead of 20) means the old ratios have increased by 12%, so 40:1 becomes 45:1, 54:1 is now 60:1 etc.
The instructions have all been redone in a more user-friendly format. Anyone needing info can, on request via e-mail, view any of the instructions in PDF form.
