I've been watching this thread, and I = have a similar problem.  The difference is that my trans shudders when the = van is hot.  Usually after driving a few hundred miles on the highway, = then stopping for a few minutes, it shudders on takeoff.  Any ideas that = may be different than the ones mentioned for the "cold" jumpy = trans?
 
Matt
New Cumberland, PA
'81 Westy = (current)
'74 914 (current)
'72 Type III Fastback
'83 = Rabbit
'79 Rabbit