Here are some more pics of my two chassis.

later Chassis with pintle between the rails

Earlier chassis with pintle below the rails
You will need to add 336 mm to your chassis rails.
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1942 Chevrolet C60L WO48 - (Workshop)
1944 F15A
1965 Workshop Platform Trailer, Binned ARN: 101-803
1967 Trailer, 1/2 ton AUST No 5 ARN: 154-748
1990 Perentie 6x6 ERV, ARN: 51-981