4X4 Hubs question
 

Can i swap out my automatic locking hubs for manual locking ones, if i can how hard is it, where can i get them from.... i think the manual locking hubs come on 87-88 model will they fit my 89....

I have a 1989 Mazda B2600i 4x4, Im Wanting to put manual locking hubs on it. where can i get them from...