I have over 200 pages of info on tuckers,thiokol imp,cushman trackster including all original price lists,dealer service bullitins,options etc,every piece of publication ever put out from cushman on the trackster,these came strait from a friend that sold them for 10yrs,also raid trac,and muskeg. I am still looking for thiokol spryte manuals.It will take time,but i will post everything in my photo section,afterall we are here to help eachother.I will also post all engine info,seeing that it is difficult to find older industrial engine info. Doug