165 - rear view, note the 2 diff mount bolt holes and the filler plug
Close up of the filler plug, note that it "appears" to have 2 points at which to undo the plug - the largest is only to be used
The breather plug
165 - side view
165 - bottom view
165 - view of the front locating/securing bolt holes. Note that the front ones are enlarged, presumably to allow precise location of the
diff relative to the propshaft
185 CS - bottom view
185 CS - top view
205 - internal view
Note the extra gearing which shows this is a Torsen diff
Notes
All the GT4 rear diffs look very similar
All the GT4 rear diffs are interchangeable e.g. the 205 diff will fit a 165 and a 185
165 - LSD
185 - LSD
185 CS/RC - Torsen diff
205 - Torsen diff
Thanks to
Steve Gillies for the CS rear diff pictures