Help with Boge Strut Identification

[Andy B]

I'm planning on improving my Boge Strut inserts and I've found the previous owner has installed two different Boge struts. I've found the following numbers, but one is not on Pelican parts list and the other is a slightly odd number. I'm trying to determine if the inserts are likely to be different ??

Numbers are as follows:

Front Right 911-341-042-00 (has inner threaded nut to hold insert in place like picture)

Front Left 911-341-041-05 (has rolled nut on outer of sleeve to hold insert) This I believe to be an 86-89.

Brake calipers on both are 3.5" and aluminium if that helps.

Ive found references to other numbers not identifiable on parts lists ?? Is it just a matter of identifying what youve got a by type and not number ?? Most imprtantly do I need to find a matching set ??

Thanks in advance for any help from suspension experts.