Another superb part from SRC, this Extremely Heavy Duty Layshaft is made from 304 Stainless Steel so you know its borderline bulletproof for even the biggest engines!  While also coming in at a sweet price compared to titanium etc.
 
Supplied with a 12.9 BZP M6 bolt and washer so you can bang this up proper tight, a little TAYLOR medium threadlock and it wont be coming undone on you even though RH thread.