The reverse lockout cup is basically the upper shell keeping the two half-joints together on the gearstick while allowing the stick to swivel.
On my car this part was broken. Perhaps of ungentle handling of the gearstick, or perhaps because of the worn gear linkage bushes have allowed the gearstick more stroke.
It is not available anymore as new part.
Impergom doesn’t make them anymore and they don’t foresee to produce them again.
You might find it as “new old stock” on internet or as second hand part.
I did it the other way.
A friendly colleague made a 3D drawing for me and I had it 3D printed.
I added the STL file as an attachment.
It’s free to use – there is no copyright. No guarantee neither.
I used the company Hubs and the Nylon-based material Glass filled PA 12.
Costed me 125€ delivered.
I admit you might get away with a cheaper material like ABS.
If you want to have 1000 of them made in China it will even be cheaper. Good luck
https://drive.google.com/file/d/1re5ow5Ewcv6eUcxlL_HU9tdBXUCCnxYC/view?usp=sharinghttps://drive.google.com/file/d/17PWNPR59wvLxlNI_1CfMj48-jz6buOeI/view?usp=sharing