I was only able to find locking hubs for 80-96 Bronco's.
Doesn't seem like they have them for 78-79
I fixed your links on PJB, but I'm not a moderator here. You need to add "www." to the web address for the pics to work.
FYI, he has the original 78 factory Eaton locking hubs and he's only looking for the plastic dial, nothing else.
If he had an NP203, he wouldn't have hub locks, he'd have slugs and if he did have hub locks, it would already have the conversion kit installed.I just looked at the Warn application chart on their website, but does he have full or part time 4x4, the chart says you need a transfer case conversion kit if you have full time 4x4, I believe thats the NP 203.
Looks like a rebadged Warn Standard.Oh is that pretty!! Would look good on a restoration bit for a DD it is not worth it.