Retrofitting a retarder
I have a 1998 BB TCFE400 with a Cummins B235 and an Allison MT643.
When we're on holiday in mountainous areas (France, Germany, Austria, even Belgium or Luxemburg) I often feel the miss of an engine brake or retarder.
Voith told me they can't fit a retarder on my drive shaft "because it is American" (everything is metric, so I think this is BS!)
Has anyone ever converted an Allison MT643 to a MTB643 or 644? What are your experiences?
Ernst & Sylvia