[Chaparralman1974]

I can't really tell from the pictures, but it looks like you have the flanges installed on the outer hub that more or less act like a permanently locked front hub assemble. Basically, it is the exact same setup used on a bunch of early jeeps and other 4x4's where the outer axle stub shaft is permanently affixed to the the hub via a flange and bolts. You can remove the flanges and install locking hubs. The older dana 44 axles used what were called "external spline hubs" that bolted onto the hub and allowed you to engage or disengage the front axle. The 67's through 69 I believe came with the Powrlok setup. My 67 had those on it when I got it. I took them off (gonna keep them for nostalgia) and installed a set of "big hub" spicers onto the hubs. The reason for this is because my first truck when I was 16 years old was a 1973 Chevy K20. It had the big hubs on it, so I wanted them on my 67 just for nostalgic reasons.