What kind of Nissan gearbox do I have???

[MB]

Please don't stress Timo mate!
John @ ThreeDogs will no doubt kindly make a best effort in a day or two AEDTime mate ;-) !

[timo999]

Please don't stress Timo mate!
John @ ThreeDogs will no doubt kindly make a best effort in a day or two AEDTime mate ;-) !

Thanks for Your couraging!
Anyway my car is 40 years old... so it's not question of seconds...
It's summertime in Finland now, so I won't dismantle transmission for at least 5 months. In wintertime I have plenty of time to fix it. I'll just try to avoid the use of 3rd gear...

[mudski]

Going by your two pictures comparing the two, I think you are correct, but I think you are better off just emailing Marks Adaptors with the pics. If it is their work, they will know for sure.
http://www.marks4wd.com/