Reply to "Minimum Synchro Clearance etc. etc. etc."

Wannabee, there's one more rather easy mod owners can do to reduce or eliminate the clunk during shifting: shift slower! Steel balk-ring transmissions as found in ZF and Porsche gearboxes can often be 'beaten' by the linkage, and may ALWAYS clunk if you attempt to shift too fast. In the U.S we call it 'speed-shifting' or 'bang-shifting' and it comes from drag racing. Panteras do not drag-race well. Try moving the gearshift lever a bit slower & more precisely and see if that doesn't help. The only other thing I can think of is using thicker lube for its shock-cushion effect, and that affects the bearings and how hot the assembly gets on long runs.