[Jac Mac]

Originally Posted by frankym

I think that is a good point, and I never considered whether or not weight would be an issue. I believe that many of these heavy trucks have lighter weight aluminum wheels, not sure what the knock offs are made of. Certainly will read up on max weights for vintage and trigo like wheels.

Those trucks with alloy wheels have 8 or more wheel studs and they are on a much larger pcd than most car applications! Not only the weight but also the wheel offsets involved in some truck applications would grossly overload a knock off / pin drive setup.
The only vehicle I can think of that even approaches what you suggest was the UK Ford Transit Supervan which was a publicity stunt of essentially dropping a van body over GT40 mechanicals, don't think there was anything of the Transit running gear used and I don't think it ever hauled much payload!!