I have what I believe is a California Custom Trike. It has IRS, it is not a normal VW setup. The axle/cv joint is more like a vw cabriolet axle. In board cv can be unbolted, out board has to have outer spindle nut removed then axle comes out. No stub axle.
Does anyone know what cv joint, axle and boots were used on the Apex/California Trike?