That looks like a NP208 shifter, same as a NP241 shifter.
Since you have a premium membership, post up a picture of the transfer case from underneath and looking at the back of the case.
I see that there is a z gate in your shifter, however it looks like someone blocked it from going to the one side, so it's just forward and backwards.
Keep in mind that you will need to have the transmission in neutral, not park, while holding the brakes.