TR6 door gap

[Robert J Carley <rcarley@uoguelph.ca>]

Anybody have hints as to how to reduce the gap at the top of the door in a
TR6?   i.e. the door gap (rear) is larger at the top than the bottom.   
I have already placed an extra shim at the very rear of the frame rails.

Any usable suggestions would be appreciated.  It was this way before I
began the restoration, and still is.

Robert Carley
73 TR6 (about to be painted)