This FJ-3 chassis has been modified with a Mercruiser engine and auto transmission.
https://www.facebook.com/commerce/listing/1270036480582920/
“I am doing a chassis swap on my 1961 Willys Jeep Fleetvan. So this is the stock frame, suspension and axles from my Fleetvan. The motor and transmission have been swapped, and it has a MerCruiser four-cylinder, 140cc motor and a 700R4, two wheel drive, transmission. The motor and transmission work just fine. You can see the video of us doing a last-minute burnout before we took the body off the chassis. It should be a perfect swap for any early Jeep, if you wanted to keep it two-wheel drive. It is the same 80” wheelbase as the early CJ-2, CJ-3s, and DJ-3. The Fleetvan was originally right hand drive, but the previous owner converted it to left hand drive. It is located in central Michigan. On a side note, if you’re interested in following the build of my handicap conversion Fleetvan, you can follow it at, https://www.facebook.com/GreengoTheMoewillyteeVan?mibextid=ZbWKwL“
Do you still have this for sale?