petes still serching through his magazines
gt made over 20 diffrent hubs the hubs you got with the collars should have sealed bearings and hollow axles, whip the collars off and have a look, if they have, then those hubs you have right there were the daddy`s in there time and they were used on all gt race bikes (and early performers/dyno`s untill they brought out the 36h superlace hubs). you got a top set of strong and yet light hubs there mate, ive got a pair going on my rider