Oups so there's something wrong :
It 's write here ( in french ! BTW, do tou speak french?) inthe book: "La Jeep: un défi au temps" :
" Un levier séparé permet d'engager à volonté le pont avant" that you can translate by:
" you've got a separate lever to engage front whell "
There's something wrong on it and I don't understand what !
I use a old pics taken during WWII to make my dio . So the rear axle also would had been on a wedge???????