According to the seller, this 300GD has had its original engine swapped with the 5-cylinder turbodiesel from a 300SD. Other stated modifications include a military-spec, Wolf gearbox with crawler low gear, snorkel, bolt-on rock sliders, and factory fender flares. Front and rear locking differentials are, of course, standard on G-wagens.
This truck is currently for sale in Dallas, Texas via ebay with about a day and a half left on the clock. Bidding stands at $21,400 at this time with the reserve unmet.
Update: This truck sold for $32,500.
More photos after the jump.