[RHClarke]

Originally Posted by Phil Waterman

...As with many CMP parts there are variations, and differences in how they were made. I suspect that a lot of these small assemblies were given to small subcontractors and how they were made was best suited to what that contractor had equipment to do. They may even have been slightly modified to make use of left over steel stock trimmed from larger parts.

The result is your box and the one on my `45 HUP are slightly different in dimensions and method of assembly mine box is all formed from a single piece of steel. The computer just turned up my CAD drawing for the mine, Ok got a file format I can post to MLU. ...Cheers Phil

Phil, There is no doubt that SBMA contracts were spread out to ensure a continuous supply of material for the assembly line, and thus there were differing designs and methods of manufactur. I have examples of both your design and the design I ended up copying. Bottom line is that no one can say with certainty that one design was correct, the other incorrect.

I encourage all HUPsters to use the design that works for them. The world is a better place when another HUP hits the road.