Here's an unusual 1/4-tonner. It's the Jordanian military's "Desert Iris" vehicle. Looks very sporty, with a rear end that looks like the XM-151 with rounded corners and bulging rear lights.
 

Below - here's a close-up of the locking differential unit as supplied by Victor at Mil-Plus. A really nice conversion with hydro-electrical  locking mechanism. It was purchased by a French mutt-owner along with a similarly modified diff.

Below:  peeping out from that packing case is a brand-new engine...it's a 1983 contract, too. These gems still appear every now and then.
 

Here's a photo I came across ages ago. It's an M151A1 (mid-1966) kitted out as a fire department
vehicle in Nam.