I just bought a Ford tractor today and am havin a time idin it,3 cyl,gas..No serial behind starter,I think its 68' to 75' or so..numbers on block are D2 NN 7006 A,on frame between motor and rear are DONN 6015 J,under seat are DD40A15 ,4C08B,,ill try to attach pic.email is cheeksrules@yahoo.com,,Got it tunin over,dist cap dirty etc,gettin gas .THANKYOU