The black rubber strap i'm talking about is on the outside of the spare tire compartment on the drivers side of the car.
I searched and found this helpful link to a thread that Andy started with Pietro's photos in post #8: http://www.ferrarichat.com/forum/showthread.php?t=104650 Hope it helps
The early L type had a longer rod of smaller diameter than the later E version. See the last photos of this car http://cgi.ebay.com/ebaymotors/Ferrari-DINO-COUPE-DINO-GT-1972-FERRARI-246-GT-COUPE-IMMACULATE-RECORDS_W0QQcmdZViewItemQQcategoryZ6212QQihZ011QQitemZ320105089233QQrdZ1 (and never mind the La Scuderia Rossa imitation tool kit)