I know, it feels like years ago. Sorry guys...
I received a few today, will get more beginning of next week.
New ones has been improved in several ways.
Fits both gear and ball diff (old news...)
Sits even better/more secure.
Easier to install diffs, less stress on belts.
They can be used with both 3.5 and 4mm shock towers without any modification.
Some pics:
Rear diff cover.
Those who want can now order them and I will ship next week.
Cost 25 euros each.
Short front and short rear diff ones.