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allis Chalmers HD 19, 20, and 21 tracks

stumpjumper83 ยท 2014-09-24 21:48

so who knows the track gauge and pitch for the old all is hd19-21. I'm trying to see if the undercarriage of a early 21 fits a 20 as well. thanks

Replies2
  1. #1D6 Merv2014-09-25 07:45

    they are all the same 9 inch. And lo and behold.....D8H is the same pitch and WILL fit; just maybe a different number of links !! Just another useless bit of info to know for AC fans !! cheers merv :drinkup

  2. #2stumpjumper832014-09-25 07:49

    thanks a millon d6 merv...