Be aware the instructions for the stator conversion are different when used for the bearing conversion.
Sonnax offers aluminum stator cap AL-WA-7 for use when converting early, readily available pre-2006 Aisin made stators to Allison 1000/2000/2400, 2006-Later LuK made units, as the LuK stators are difficult to find.
It can also be used in Allison 1000/2000/2400 Early units to convert to the preferred AL-N-1 impeller-side bearing in earlier applications or vice versa.