The beginnings of a lower wishbone

With a few hours to spare today, I managed to get out and get a little more done in the garage. Most of what I've been doing of late has been research into the front suspension. Things like a direct hub to hub width are hard to find, as they vary with suspension travel. But this is a measurement that I need an idea of to start lining up for my wishbones. I have finally managed to figure out something pretty close to what I need, so I could start setting up at last. And it turns out that the BMC/Austin designers only worked in nice even imperial measurements.

So I now need to make a start on a 10" deep A frame wishbone. The plan is to make a jig to allow me to mock everything up and alter it easily as I discover problems that I haven't foreseen. The basis of the jig I have had lying about for ages, waiting for me to get to this point at long last. It is based on large box section, welded into a T shape. The plan is that I will have the upper wishbone jig on one side, and the lower on the other.

 

The main issue I face now is that I need to find somewhere to machine me the tapered steel end pieces I need for the outer joint. Without those accurately tack welded in place, I can't make a start the wishbone tubes. These will be the same 1" tubing that the rear A frame is made from as I have loads of it and it's strong as hell.