Nice build. Racing this season?
When you get a chance, can you provide a breakdown of your front suspension setup? Really the length of the lower control arm or part # and matching length of swaged tubing. Off the shelf front bits are the way to go.
The upper swaged tubes are 6" long with 5/8" threads.
The lower main control arm is 14" from the center of the monoball housing to the female threaded end. The threaded end is 3/4". THis unit was an "off the shelf" part from a stock car supply company. The unit was called a 15-1/2" control arm for an asphalt or ASA stock car. I assume the 15-1/2" dimension is assuming a dimension from the ball joint housing to the center of the rod end when installed into the tube. I assume most manufacturers measure these this way. I works for me. Instead of a lower ball joint, I used a press fit monoball spherical bearing with a replacable pin/stud. The pin/stud has the correct taper for my Mustang II upright. I think they pretty much make studs for any ball joint taper.
I got most of the parts from UB Machine in Fort Wayne, IN. http://www.ubmachine.com/
. Good stuff reasonable price. They have everything thing for the chassis/suspension fabricator. They will make custom stuff also.