Ken...
Slight correcttion..
we do not weld the QR spline on any cars....but we do supply the threaded spigot and the quick release unit...
The NRG quick release and Pfadt adapter combined is about 5" long (2 1/2" for the NRG and 2 1/2" for the Pfadt adapter).......
If you guys want to use the horn on the wheel why not use the supplied steering wheel? The ones Fran sent me had that.