Baldwin motion,
here are some more pics of my creation that you asked for.
it is a 1977 Holden one tonner cab chassis made by General Motors Australia and is factory apart from the rear clip. They were sold as a commercial vehicle so concreters, plumbers,builders ect had them. point was they came with heavy duty stuff 10 bolt 4.11 posi rear end with big axles a 308 CI V8 and your choice of 4 speed or T400. They were light and they were cheap (this one has a 427, glide and 9"
(I intend to run super gas with it this year)
Cheers: auschris