93 Nissan V6 Manual 4x4 Front LSD

[digs]

I am 100% sure I have a rear LSD, (Limited Slip Differential).

I am curious, can the same test be run on the front?
Put it in 4 wheel low, jack up both front's and spin one to see what direction the other spins in?

Or, without doing that, does anyone know if they ever made this truck with a front LSD. I recently got rid of a 1972 K5 Blazer that had both front and rear LSD.

I was so happy to find out today that my truck had LSD, it would be double awesome if the front did too. However, I highly doubt it does.

Last, if it doesn't, can I make it so?

[Desert Rat]

Fronts never came with LSD stock, but yes, your test method works up front too provided the hubs are locked. Calmini sells an LSD that will work in a R200A - it's essentially the same LSD from an 87-89 Z31.