[Healeys] SPEED SIDE SHIFT GEAR BOX Unknown spare piece

[searunner44 at gmail.com (ANDREA VILLA)]

My mechanic have find one piece that don't compare on the
AH spares and AHead and DW Catalogues
the only catalogue where it compare are the SC
section 2.7 n014 part n 326718 BUFFER PAD
https://picasaweb.google.com/lh/photo/quNoQrW_VF6YGLkTofDdTg?feat=directlink
Healey 100 6 BN4
Parts List B 3 Part Number AEC3298

It is probably a flat piece of rubber that I haven't find when dismantle my
gearbox
Have anyone notice of this piece and the build material and if possible the
thickening ??
Andrea