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Registered
Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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When we updated the tensioners in my son's '73 we added these two longer studs. They are BM6 x 42 (6mm x 42 mm long) Porsche Part No.: 900.061.092.02 if you want to order them. We removed the shorter studs by "double nutting" them but I knew where I could borrow a stud collet if it came to that. I wouldn't recommend the tempting short cut of using screws with heads as you will work the soft female threads in the aluminum or magnesium chain case every time you remove the covers. If you use a screw make it into stud and loctite it in.
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