We are a small shop, with customers trucks of primarily IHC w/ IHC, IHC w/ Cat or Cummins and Allisons; GM w/ Cat, Duramax; Ford w/IHC, Cummins; Freightliner w/ Cummins. Scanners of Prolink, Eaton, PDA w/ factory programs, seem to be the best choices I have fo... Login to read more.