When I start accelerating from a dead = stop (1st gear) the Vanagon gets the jitters.  Sounds like a warped flywheel = to me; but just wondering if it could be oil leaking on the clutch.  I = don't have the problem in any other gear.  The problem seems to be worse when = I am accelerating uphill from stop.
Some days the problem is worse than others. 
 
I had a new clutch and throwout bearing = installed several years ago.
 
I would appreciate any comments for = solving this problem.
 
George
Columbus, GA