I took an allen wrench the same size as the Roto shaft and cut off the L end . Then i threaded it the same size as the aluminum cup you'll buy . ( just enough to get a lockwasher and nut on there ) I ordered the cup from the LHS , but you should be able to find an old starter and just use that one . I then trimmed the other end so that the cup just clears the housing of the Roto-start drive . Then about 1/2 inch from the end you insert into the drive , i dremelled a groove to install an O-ring (the same as the shaft for your truck ) to keep it from falling out . I don't have a digital camera , or i would post pics . It's pretty simple , you should be able to figure it out .


Gerald