I was about to ask the same question. I recently bought a kit of parts to build a late Shipley Scott, comprised of nearly all N.O.S. parts obtained from Holders at least 25 years ago.When I did a loose assembly I found the same thing ie. only 1/4 inch of movement on the gearbox, but all the Scott parts are so over engineered that I found that I could grind a lot of metal from the brake crossover lug and from the rear dowel boss on the gearbox to more than double the gearebox movement
